APA (7th ed.) Citation

Ricklefs, R. E., & Finch, C. E. (1995). Aging: A natural history. Scientific American Library.

Chicago Style (17th ed.) Citation

Ricklefs, Robert E., and Caleb E. Finch. Aging: A Natural History. New York: Scientific American Library, 1995.

MLA (9th ed.) Citation

Ricklefs, Robert E., and Caleb E. Finch. Aging: A Natural History. Scientific American Library, 1995.