APA (7th ed.) Citation

Poirier, F. E. (1990). Understanding human evolution (2nd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Poirier, Frank E. Understanding Human Evolution. 2nd ed. Englewood Cliffs: Prentice Hall, 1990.

MLA (9th ed.) Citation

Poirier, Frank E. Understanding Human Evolution. 2nd ed. Prentice Hall, 1990.