Douglas Underpass (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Douglas Underpass" in English language version.

refsWebsite

Global rank English rank

135^th place

105^th place

2newspapers.com

55^th place

36^th place

2books.google.com

3^rd place

3^rd place

1web.archive.org

1^st place

1^st place

1measuringworth.com

2,465^th place

1,383^rd place

books.google.com

Hayostek, Cindy (2009). Douglas. Charleston, South Carolina: Arcadia Publishing. p. 26. ISBN 9780738570655.
Cannon, Jerry A.; Morris, Patricia D. (2015). Arizona's Historic Bridges. Charleston, South Carolina: Arcadia Publishing. p. 32. ISBN 9781439652657.

measuringworth.com

Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.

newspapers.com

"Untitled". Arizona Republic. November 22, 1936. p. 61. Retrieved October 25, 2022 – via Newspapers.com.
"'Magic Tunnel' or 'Crooked Road'? Underpass Debate Revs Up in Douglas". Tucson Citizen. October 23, 1999. p. 1. Retrieved October 25, 2022 – via Newspapers.com.

nps.gov

npgallery.nps.gov

"National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
"National Register of Historic Places Inventory—Nomination Form". National Park Service. September 30, 1988. p. 2. Archived from the original on October 24, 2022. Retrieved October 24, 2022.

web.archive.org

"National Register of Historic Places Inventory—Nomination Form". National Park Service. September 30, 1988. p. 2. Archived from the original on October 24, 2022. Retrieved October 24, 2022.