Dyfyniad APA

Willett, W. (2013). Nutritional epidemiology (3rd ed.). Oxford University Press.

Dyfyniad Arddull Chicago

Willett, Walter. Nutritional Epidemiology. 3rd ed. Oxford: Oxford University Press, 2013.

Dyfyniad MLA

Willett, Walter. Nutritional Epidemiology. 3rd ed. Oxford University Press, 2013.

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