Cita APA (7th ed.)

Margetts, B. M., & Nelson, M. (1991). Design concepts in nutritional epidemiology. Oxford University Press.

Cita Chicago (17th ed.)

Margetts, Barrie M., i Michael Nelson. Design Concepts in Nutritional Epidemiology. Oxford, Eng.: Oxford University Press, 1991.

Cita MLA (9th ed.)

Margetts, Barrie M., i Michael Nelson. Design Concepts in Nutritional Epidemiology. Oxford University Press, 1991.