Michael Beschloss, ed., The Presidents, Every Leader from Washington to Bush. New York: ibooks, 2003.
William A. DeGregorio, The Complete Book of U.S. Presidents. FortLee, NJ: Barricade, 2001.
Lewis L. Gould, Grand Old Party, A History of the Republicans. New York: Random House, 2003.
Paul C. Light, The President's Agenda, Domestic Policy Choice from Kennedy to Carter. Baltimore: Johns Hopkins University Press, 1983.
Svend Petersen. A Statistical History of the American Presidential Elections. New York: Frederick Unger, 1963.
Kirk H. Porter and Donald Bruce Johnson. National Party Platforms, 1840 - 1960. Urbana, IL: The Univeristy of Illinois Press, 1961.
Arthur M. Schlesinger and Fred L. Israel, Eds. History of Presidential Elections, Volume V. New York: Confucian Press, 1981.
Stephen J. Rosenstone, Roy L. Behr & Edward H. Lazarus. Third Parties in America. Princeton, NJ: Princeton University Press, 1996.
Jules Witcover, Party of the People, A History of the Democrats. New York: Random House, 2003.
US Government Web Sites
Presidential information
State
Interior
Navy
Treasury
Energy
Commerce
Justice
Agriculture
HUD
Other Web Sites
Encyclopædia Britannica
Dave Leip's Atlas of U.S. Presidential Elections
Wikipedia
U-S-History.com
Election results are from the New York Times except for the election of 2000 (www.fec.gov/pubrec/fe2000/prespop.htm.)