Margetts, B. M., & Nelson, M. (1991). Design concepts in nutritional epidemiology. Oxford University Press.
Chicago (17e ed.) BronvermeldingMargetts, Barrie M., en Michael Nelson. Design Concepts in Nutritional Epidemiology. Oxford, Eng.: Oxford University Press, 1991.
MLA (9e ed.) BronvermeldingMargetts, Barrie M., en Michael Nelson. Design Concepts in Nutritional Epidemiology. Oxford University Press, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.