Butterfield, R. P. (1966). The American past: A history of the United States from Concord to the Great Society ([2d rev. and expanded ed.). New York]: Simon and Schuster.
Чикагска система за цитиранеButterfield, Roger Place. The American Past: A History of the United States From Concord to the Great Society. [2d rev. and expanded ed. New York]: Simon and Schuster, 1966.
MLA формат за цитиранеButterfield, Roger Place. The American Past: A History of the United States From Concord to the Great Society. [2d rev. and expanded ed. New York]: Simon and Schuster, 1966.
Внимание: Тези цитати може да не са 100% точни.