APA (7th ed.) Citation

Clark, W. R. (1999). A means to an end: The biological basis of aging and death. Oxford University Press.

Chicago Style (17th ed.) Citation

Clark, William R. A Means to an End: The Biological Basis of Aging and Death. New York: Oxford University Press, 1999.

MLA (9th ed.) Citation

Clark, William R. A Means to an End: The Biological Basis of Aging and Death. Oxford University Press, 1999.