Herbert Hoover

జనవరి 12, 2009. "Biography of Herbert Hoover". Whitehouse.gov. మార్చి 13, 2007. Retrieved జనవరి 12, 2009. "Herbert Hoover – Republican Party – 31st President

2007. Gupta 1997, p. 11 Puri 1980, p. 60 Hopkirk 2001, p. 96 Hoover 1985, p. 251 Hoover 1985, p. 252 Ward 2002, pp. 79–96 Strachan 2001, p. 796 Strachan

"The Memoirs of Herbert Hoover: Years of Adventure, 1874–1920. (New York: Macmillan Company. 1951. pp. xi, 496.) and Herbert Hoover and the Russian Prisoners

CITEREFSaadi2009 (help) Patenaude, Bertrand M. "Food as a Weapon". Hoover Digest. Hoover Institution. Archived from the original on 2008-07-19. Retrieved