APA (7th ed.) Citation

Isaac, G. L., & Leakey, R. E. (1979). Human ancestors: Readings from Scientific American. W. H. Freeman.

Chicago Style (17th ed.) Citation

Isaac, Glynn Llywelyn, and Richard E. Leakey. Human Ancestors: Readings from Scientific American. San Francisco: W. H. Freeman, 1979.

MLA (9th ed.) Citation

Isaac, Glynn Llywelyn, and Richard E. Leakey. Human Ancestors: Readings from Scientific American. W. H. Freeman, 1979.