APA引文

Smith, A. (2002). Homocysteine, B vitamins, and cognitive deficit in the elderly.

Chicago Style (17th ed.) Citation

Smith, A. Homocysteine, B Vitamins, and Cognitive Deficit in the Elderly. 2002.

MLA引文

Smith, A. Homocysteine, B Vitamins, and Cognitive Deficit in the Elderly. 2002.

警告：這些引文格式不一定是100％准確.