Cita APA

Lloyd, A. 1., & Lloyd, A. 1. (1973). Marathon: The story of civilizations on collision course. New York: Mentor Book.

Citación estilo Chicago

Lloyd, Alan 1927-, y Alan 1927- Lloyd. Marathon: The Story of Civilizations On Collision Course. New York: Mentor Book, 1973.

Cita MLA

Lloyd, Alan 1927-, y Alan 1927- Lloyd. Marathon: The Story of Civilizations On Collision Course. New York: Mentor Book, 1973.