Willett, W. (1998). Nutritional epidemiology (2nd ed.). Oxford University Press.
Cita Chicago Style (17a ed.)Willett, Walter. Nutritional Epidemiology. 2nd ed. New York: Oxford University Press, 1998.
Cita MLA (8a ed.)Willett, Walter. Nutritional Epidemiology. 2nd ed. Oxford University Press, 1998.
Precaución: Estas citas no son 100% exactas.