APA-referens (7:e uppl.)

Willett, W. (1998). Nutritional epidemiology (2nd ed.). Oxford University Press.

Chicago-referens (17:e uppl.)

Willett, Walter. Nutritional Epidemiology. 2nd ed. New York: Oxford University Press, 1998.

MLA-referens (8:e uppl.)

Willett, Walter. Nutritional Epidemiology. 2nd ed. Oxford University Press, 1998.