Παραπομπή APA

Wilson, H. K. (1955). Grain Crops (2.). Mc Graw Hill Book Company Inc.

Παραπομπή Chicago Style

Wilson, Harold K. Grain Crops. 2. New York: Mc Graw Hill Book Company Inc, 1955.

Παραπομπή MLA

Wilson, Harold K. Grain Crops. 2. Mc Graw Hill Book Company Inc, 1955.