APA (7th ed.) Citation

Pfeiffer, J. E. (1985). The emergence of humankind (4th ed.). Harper % Row.

Chicago Style (17th ed.) Citation

Pfeiffer, John E. The Emergence of Humankind. 4th ed. New York: Harper % Row, 1985.

MLA (9th ed.) Citation

Pfeiffer, John E. The Emergence of Humankind. 4th ed. Harper % Row, 1985.