Upper class (English Wikipedia)

Akhbar-Williams, Tahira (2010). "Class Structure". In Smith, Jessie C. (ed.). Encyclopedia of African American Popular Culture, Volume 1. ABC-CLIO. p. 322. ISBN 978-0-313-35796-1. Archived from the original on 21 November 2015. Retrieved 29 October 2015.

cambridge.org (Global: 305^th place; English: 264^th place)

dictionary.cambridge.org

"Upper class".

csmonitor.com (Global: 791^st place; English: 550^th place)

McCutcheon, Chuck (26 December 2014). "Why the 'donor class' matters, especially in the GOP presidential scrum". "The Christian Science Monitor. Archived from the original on 11 March 2016. Retrieved 10 March 2016.

federalreserve.gov (Global: 2,493^rd place; English: 1,714^th place)

Greenspan, Alan (28 August 1998). "Remarks by Chairman Alan Greenspan". The Federal Reserve Board. Archived from the original on 6 June 2007. Retrieved 20 June 2007.

gallup.com (Global: 2,558^th place; English: 1,868^th place)

Dugan, Andrew (30 November 2012). "Americans Most Likely to Say They Belong to the Middle Class". Gallup. Archived from the original on 11 March 2016. Retrieved 10 March 2016.

jstor.org (Global: 26^th place; English: 20^th place)

Smith, Julia A. (2000). "Land Ownership and Social Change in Late Nineteenth-Century Britain". The Economic History Review. 53 (4): 767–776. ISSN 0013-0117.
Skwarczyński, Paweł (June 1956). "The Problem of Feudalism in Poland up to the Beginning of the 16th Century". The Slavonic and East European Review. 34 (83). Salisbury House, Station Road, Cambridge, Cambridgeshire county, ENGLAND: Modern Humanities Research Association: 302. JSTOR 4204744. In 1459 Ostroróg submitted a memorandum to the parliament (sejm), suggesting that the palatines, or provincial governors, should be given the title of prince and their sons the titles of barons and counts. The title of count was suggested by him for a castellanus. But all these suggestions were not accepted.

nytimes.com (Global: 7^th place; English: 7^th place)

Johnston, David Cay (29 March 2007). "Income Gap is Widening, Data Shows". The New York Times. Archived from the original on 5 November 2007. Retrieved 20 June 2007.
Johnston, David Cay (5 June 2005). "Richest Are Leaving Even the Rich Far Behind". The New York Times. ISSN 0362-4331. Archived from the original on 9 October 2016. Retrieved 26 June 2015.
Herbert, Bob (19 July 1998). "The Donor Class". The New York Times. Archived from the original on 11 March 2016. Retrieved 10 March 2016.
Confessore, Nicholas; Cohen, Sarah; Yourish, Karen (10 October 2015). "The Families Funding the 2016 Presidential Election". The New York Times. Archived from the original on 10 March 2016. Retrieved 10 March 2016.
Lichtblau, Eric; Confessore, Nicholas (10 October 2015). "From Fracking to Finance, a Torrent of Campaign Cash - Top Donors List". The New York Times. Archived from the original on 10 March 2016. Retrieved 11 March 2016.

theguardian.com (Global: 12^th place; English: 11^th place)

"How should we define working class, middle class and upper class?". The Guardian. Guardian News and Media Limited. 2011. Archived from the original on 15 September 2018. Retrieved 15 September 2018.

tompaine.com (Global: low place; English: low place)

Pizzigati, S. (7 November 2005). "Alan Greenspan, Egalitarian?". TomPaine.com. Archived from the original on 30 September 2007. Retrieved 20 June 2007.

washingtonpost.com (Global: 34^th place; English: 27^th place)

Bartels, Larry (8 April 2014). "Rich people rule!". The Washington Post. Archived from the original on 17 April 2016. Retrieved 17 July 2016.

web.archive.org (Global: 1^st place; English: 1^st place)

Bartels, Larry (8 April 2014). "Rich people rule!". The Washington Post. Archived from the original on 17 April 2016. Retrieved 17 July 2016.
Akhbar-Williams, Tahira (2010). "Class Structure". In Smith, Jessie C. (ed.). Encyclopedia of African American Popular Culture, Volume 1. ABC-CLIO. p. 322. ISBN 978-0-313-35796-1. Archived from the original on 21 November 2015. Retrieved 29 October 2015.
"How should we define working class, middle class and upper class?". The Guardian. Guardian News and Media Limited. 2011. Archived from the original on 15 September 2018. Retrieved 15 September 2018.
Dugan, Andrew (30 November 2012). "Americans Most Likely to Say They Belong to the Middle Class". Gallup. Archived from the original on 11 March 2016. Retrieved 10 March 2016.
Johnston, David Cay (29 March 2007). "Income Gap is Widening, Data Shows". The New York Times. Archived from the original on 5 November 2007. Retrieved 20 June 2007.
Johnston, David Cay (5 June 2005). "Richest Are Leaving Even the Rich Far Behind". The New York Times. ISSN 0362-4331. Archived from the original on 9 October 2016. Retrieved 26 June 2015.
Pizzigati, S. (7 November 2005). "Alan Greenspan, Egalitarian?". TomPaine.com. Archived from the original on 30 September 2007. Retrieved 20 June 2007.
Greenspan, Alan (28 August 1998). "Remarks by Chairman Alan Greenspan". The Federal Reserve Board. Archived from the original on 6 June 2007. Retrieved 20 June 2007.
Herbert, Bob (19 July 1998). "The Donor Class". The New York Times. Archived from the original on 11 March 2016. Retrieved 10 March 2016.
Confessore, Nicholas; Cohen, Sarah; Yourish, Karen (10 October 2015). "The Families Funding the 2016 Presidential Election". The New York Times. Archived from the original on 10 March 2016. Retrieved 10 March 2016.
Lichtblau, Eric; Confessore, Nicholas (10 October 2015). "From Fracking to Finance, a Torrent of Campaign Cash - Top Donors List". The New York Times. Archived from the original on 10 March 2016. Retrieved 11 March 2016.
McCutcheon, Chuck (26 December 2014). "Why the 'donor class' matters, especially in the GOP presidential scrum". "The Christian Science Monitor. Archived from the original on 11 March 2016. Retrieved 10 March 2016.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Smith, Julia A. (2000). "Land Ownership and Social Change in Late Nineteenth-Century Britain". The Economic History Review. 53 (4): 767–776. ISSN 0013-0117.
Johnston, David Cay (5 June 2005). "Richest Are Leaving Even the Rich Far Behind". The New York Times. ISSN 0362-4331. Archived from the original on 9 October 2016. Retrieved 26 June 2015.

Upper class (English Wikipedia)

archive.org (Global: 6th place; English: 6th place)

books.google.com (Global: 3rd place; English: 3rd place)

cambridge.org (Global: 305th place; English: 264th place)

dictionary.cambridge.org

csmonitor.com (Global: 791st place; English: 550th place)

federalreserve.gov (Global: 2,493rd place; English: 1,714th place)

gallup.com (Global: 2,558th place; English: 1,868th place)

jstor.org (Global: 26th place; English: 20th place)

nytimes.com (Global: 7th place; English: 7th place)

theguardian.com (Global: 12th place; English: 11th place)

tompaine.com (Global: low place; English: low place)

washingtonpost.com (Global: 34th place; English: 27th place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

archive.org (Global: 6^th place; English: 6^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

cambridge.org (Global: 305^th place; English: 264^th place)

csmonitor.com (Global: 791^st place; English: 550^th place)

federalreserve.gov (Global: 2,493^rd place; English: 1,714^th place)

gallup.com (Global: 2,558^th place; English: 1,868^th place)

jstor.org (Global: 26^th place; English: 20^th place)

nytimes.com (Global: 7^th place; English: 7^th place)

theguardian.com (Global: 12^th place; English: 11^th place)

washingtonpost.com (Global: 34^th place; English: 27^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 5^th place; English: 5^th place)