Cita APA (7a ed.)

Gardiner, P. (1976). Theories of history: Readings from classical and contemporary sources. Free Press.

Cita Chicago Style (17a ed.)

Gardiner, Patrick. Theories of History: Readings from Classical and Contemporary Sources. New York: Free Press, 1976.

Cita MLA (9a ed.)

Gardiner, Patrick. Theories of History: Readings from Classical and Contemporary Sources. Free Press, 1976.