Margetts, B. M., & Nelson, M. (1997). Design concepts in nutritional epidemiology (2nd ed.). Oxford University Press.
Chicago Style (17. basım) AtıfMargetts, Barrie M., ve Michael Nelson. Design Concepts in Nutritional Epidemiology. 2nd ed. Oxford, Eng.: Oxford University Press, 1997.
MLA (9th ed.) AtıfMargetts, Barrie M., ve Michael Nelson. Design Concepts in Nutritional Epidemiology. 2nd ed. Oxford University Press, 1997.
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