Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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