(1990). Nutrition during pregnancy: Part 1, weight gain part II, nutrient supplements. National Academy Press.
芝加哥风格引文Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.
MLA引文Nutrition During Pregnancy: Part 1, Weight Gain Part II, Nutrient Supplements. National Academy Press, 1990.
警告：这些引文格式不一定是100％准确.