(1990). Nutrition during pregnancy: Part 1, weight gain part II, nutrient supplements. National Academy Press.
Chicago-referens (17:e uppl.)Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.
MLA-referens (9:e uppl.)Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.