Willett, W. (2013). Nutritional epidemiology (3rd ed.). Oxford University Press.
Cita Chicago (17th ed.)Willett, Walter. Nutritional Epidemiology. 3rd ed. Oxford: Oxford University Press, 2013.
Cita MLA (8th ed.)Willett, Walter. Nutritional Epidemiology. 3rd ed. Oxford University Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.