Sommer, A. (1995). Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control (3rd.). World Health Organisation.
Chicago Edition CitationSommer, Alfred. Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control. 3rd. Geneva: World Health Organisation, 1995.
MLA引文Sommer, Alfred. Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control. 3rd. World Health Organisation, 1995.
警告：這些引文格式不一定是100％准確.