Cita APA (7th ed.)

Day, M. H. (1970). Fossil man. Grosset and Dunlop.

Cita Chicago (17th ed.)

Day, Michael H. Fossil Man. New York: Grosset and Dunlop, 1970.

Cita MLA (9th ed.)

Day, Michael H. Fossil Man. Grosset and Dunlop, 1970.