Sommer, A. (1995). Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control (3rd.). World Health Organisation.
Chicago-стиль цитированияSommer, Alfred. Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control. 3rd. Geneva: World Health Organisation, 1995.
MLA-цитированиеSommer, Alfred. Vitamin A Deficiency and Its Consequnces: A Field Guide to Detection and Control. 3rd. World Health Organisation, 1995.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.