Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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