Cita APA

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

Citación estilo Chicago

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

Cita MLA

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