Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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