Margetts, B. M., & Nelson, M. (1997). Design concepts in nutritional epidemiology (2nd ed.). Oxford University Press.
Chicago (17e ed.) BronvermeldingMargetts, Barrie M., en Michael Nelson. Design Concepts in Nutritional Epidemiology. 2nd ed. Oxford, Eng.: Oxford University Press, 1997.
MLA (9e ed.) BronvermeldingMargetts, Barrie M., en Michael Nelson. Design Concepts in Nutritional Epidemiology. 2nd ed. Oxford University Press, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.