APA (7e ed.) Bronvermelding

(1990). Nutrition during pregnancy: Part 1, weight gain part II, nutrient supplements. National Academy Press.

Chicago (17e ed.) Bronvermelding

Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.

MLA (9e ed.) Bronvermelding

Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.

Let op: Deze citaties zijn niet altijd 100% accuraat.