Kennedy, David (2006). The American Pageant (edisi ke-13th). Boston: Houghton Mifflin.Parameter |coauthors= yang tidak diketahui mengabaikan (|author= yang disarankan) (bantuan)
Pekka Hämäläinen (December, 2003). "The Rise and Fall of Plains Indians Horse Cultures". The Journal of American History. American Historical Association, Organization of American Historians, University of Illinois Press, National Academy Press. Diarsipkan dari versi asli tanggal 2012-08-04. Diakses tanggal 5 April 2010.Periksa nilai tanggal di: |date= (bantuan)
Coolidge, Calvin (January 17, 1925). "The Press Under a Free Government". Address before the American Society of Newspaper Editors Washington, D.C. Calvin Coolidge Memorial Foundation. Diarsipkan dari versi asli tanggal 2012-06-18. Diakses tanggal 2009-11-10.
Bivens, L. Josh (2004). Debt and the Dollar(PDF). Economic Policy Institute. Diarsipkan dari versi asli(PDF) tanggal 2004-12-17. Diakses tanggal 2007-07-07.
Barker, Deanna. "Indentured Servitude in Colonial America". National Association for Interpretation, Cultural Interpretation and Living History Section. Diarsipkan dari versi asli tanggal 2009-10-24. Diakses tanggal 2013-06-23.
Pekka Hämäläinen (December, 2003). "The Rise and Fall of Plains Indians Horse Cultures". The Journal of American History. American Historical Association, Organization of American Historians, University of Illinois Press, National Academy Press. Diarsipkan dari versi asli tanggal 2012-08-04. Diakses tanggal 5 April 2010.Periksa nilai tanggal di: |date= (bantuan)
Eric Hinderaker and Rebecca Horn, "Territorial Crossings: Histories and Historiographies of the Early Americas," William and Mary Quarterly (2010) 67#3 pp. 395-432 in JSTOR
James Davie Butler, "British Convicts Shipped to American Colonies," American Historical Review (1896) 2#1 pp. 12-33 in JSTOR
Charles Hoffmann, "The Depression of the Nineties," Journal of Economic History (1956) 16#2 pp 137–164. in JSTOR
Fred H. Harrington, "The Anti-Imperialist Movement in the United States, 1898–1900," Mississippi Valley Historical Review (1935) 22#2 pp. 211–230 in JSTOR
Thomas A. Bailey, "Was the Presidential Election of 1900 a Mandate on Imperialism?" Mississippi Valley Historical Review (1937) 24#1 pp 43–52 in JSTOR
"California Gold Rush, 1848-1864". Learn California.org, a site designed for the California Secretary of State. Diarsipkan dari versi asli tanggal 2011-07-27. Diakses tanggal 2008-07-22.
missouristate.edu
history.missouristate.edu
Worth Robert Miller, "A Centennial Historiography of American Populism," Kansas History (1993) 16#1 pp 54-69. online editionDiarsipkan 2010-07-02 di Wayback Machine.
msn.com
encarta.msn.com
Henretta, James A. (2007). "History of Colonial America". Encarta Online Encyclopedia. Diarsipkan dari versi asli tanggal 2009-10-31. Diakses tanggal 2013-06-23.
nwsource.com
seattletimes.nwsource.com
"Old fears over new faces", The Seattle Times, 21 September 2006. Diakses pada 30 Agustus 2010}}
Mintz, Steven (2008-06-05). "Learn About the Gilded Age". Digital History. University of Houston. Diarsipkan dari versi asli tanggal 2008-05-16. Diakses tanggal 2008-06-05.
"California Gold Rush, 1848-1864". Learn California.org, a site designed for the California Secretary of State. Diarsipkan dari versi asli tanggal 2011-07-27. Diakses tanggal 2008-07-22.
Mintz, Steven (2008-06-05). "Learn About the Gilded Age". Digital History. University of Houston. Diarsipkan dari versi asli tanggal 2008-05-16. Diakses tanggal 2008-06-05.
Worth Robert Miller, "A Centennial Historiography of American Populism," Kansas History (1993) 16#1 pp 54-69. online editionDiarsipkan 2010-07-02 di Wayback Machine.
Coolidge, Calvin (January 17, 1925). "The Press Under a Free Government". Address before the American Society of Newspaper Editors Washington, D.C. Calvin Coolidge Memorial Foundation. Diarsipkan dari versi asli tanggal 2012-06-18. Diakses tanggal 2009-11-10.
Bivens, L. Josh (2004). Debt and the Dollar(PDF). Economic Policy Institute. Diarsipkan dari versi asli(PDF) tanggal 2004-12-17. Diakses tanggal 2007-07-07.
Henretta, James A. (2007). "History of Colonial America". Encarta Online Encyclopedia. Diarsipkan dari versi asli tanggal 2009-10-31. Diakses tanggal 2013-06-23.
Barker, Deanna. "Indentured Servitude in Colonial America". National Association for Interpretation, Cultural Interpretation and Living History Section. Diarsipkan dari versi asli tanggal 2009-10-24. Diakses tanggal 2013-06-23.