Refsum, H., & Smith, A. (2006). Homocysteine, B vitamins, and cardiovascular disease.
芝加哥风格引文Refsum, H., 与 A. Smith. Homocysteine, B Vitamins, and Cardiovascular Disease. 2006.
MLA引文Refsum, H., 与 A. Smith. Homocysteine, B Vitamins, and Cardiovascular Disease. 2006.
警告：这些引文格式不一定是100％准确.