Theodore Roosevelt (2015). “Theodore Roosevelt on Bravery: Lessons from the Most Courageous Leader of the Twentieth Century”, p.7, Skyhorse Publishing, Inc.
United States. President (1974-1977 : Ford), Gerald R. Ford (1975). “Gerald R. Ford: Containing the Public Messages, Speeches, and Statements of the President”
"Huntsman yet to live up to hype - Michele Bachmann ties Romney in first big Iowa poll - Officially announces her candidacy tomorrow - Maureen Dowd labels Obama 'Bi,' for being on all sides" by Mike Allen, www.politico.com. June 26, 2011.