Sommer, A. (1996). Vitamin A deficiency: Health, survival, and vision. Oxford University Press.
芝加哥风格引文Sommer, Alfred. Vitamin A Deficiency: Health, Survival, and Vision. New York: Oxford University Press, 1996.
MLA引文Sommer, Alfred. Vitamin A Deficiency: Health, Survival, and Vision. Oxford University Press, 1996.
警告：这些引文格式不一定是100％准确.