Kühn, H. (1955). On the track of prehistoric man. Random House.
Cita Chicago Style (17a ed.)Kühn, Herbert. On the Track of Prehistoric Man. New York: Random House, 1955.
Cita MLA (9a ed.)Kühn, Herbert. On the Track of Prehistoric Man. Random House, 1955.
Precaución: Estas citas no son 100% exactas.