Robertson,C A. (1971). Introduction to agricultural production economics and farm management. Tata McGraw Hill.
Chicago-стиль цитированияRobertson,C A. Introduction to Agricultural Production Economics and Farm Management. New Delhi: Tata McGraw Hill, 1971.
MLA-цитированиеRobertson,C A. Introduction to Agricultural Production Economics and Farm Management. Tata McGraw Hill, 1971.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.