APA (7e ed.) Bronvermelding

Spence, A. P. (1995). Biology of human aging (2nd ed.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Spence, Alexander P. Biology of Human Aging. 2nd ed. Englewood Cliffs, NJ: Prentice Hall, 1995.

MLA (9e ed.) Bronvermelding

Spence, Alexander P. Biology of Human Aging. 2nd ed. Prentice Hall, 1995.