^ Hoffman 1973, pp. 208, 217–218.

^ Jump up to: a b c Gratton, Brian; Merchant, Emily (December 2013). "Immigration, Repatriation, and Deportation: The Mexican-Origin Population in the United States, 1920-1950" (PDF). Vol. 47, no. 4. The International migration review. pp. 944–975.

^ Johnson 2005, p. 2.

^ Johnson 2005, pp. 4–5.

^ Johnson 2005, p. 6.

^ "The Ordeal of Herbert Hoover". National Archives. August 15, 2016. Retrieved May 2, 2022.

^ Whyte 2017, pp. 372–373.

^ Leuchtenburg 2009, p. 85.

^ Whyte 2017, pp. 433–435.

^ Kyvig, David E. (1979). Repealing National Prohibition. Chicago, IL: The University of Chicago Press. p. 49.

^ Huckabee, David C. (September 30, 1997). "Ratification of Amendments to the U.S. Constitution" (PDF). Congressional Research Service reports. Washington D.C.: Congressional Research Service, The Library of Congress.

^ Leuchtenburg 2009, p. 117.

^ Leuchtenburg 2009, pp. 120–121.

^ Fausold 1985, pp. 183–186.

^ Fausold 1985, p. 58.

^ Herring 2008, pp. 479–480.

^ Fausold 1985, pp. 175–176.

^ Jump up to: a b Leuchtenburg 2009, pp. 117–119.

^ Leuchtenburg 2009, pp. 122–123.

^ Current, Richard N. (1954). "The Stimson Doctrine and the Hoover Doctrine". The American Historical Review. 59 (3): 513–542. doi:10.2307/1844715. JSTOR 1844715.

