Christensen, S. K. (1953). A comparative study of the milk control programs of the northeastern states.
Chicago-стиль цитированияChristensen, Seymour Kent. A Comparative Study of the Milk Control Programs of the Northeastern States. [Ithaca, N.Y.], 1953.
MLA-цитированиеChristensen, Seymour Kent. A Comparative Study of the Milk Control Programs of the Northeastern States. 1953.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.