Gaya APA

E, E. et al (1990). Feeds and Nutrition (Formerly Feeds and Nutrition-Complete) (2nd). California: The Esminger Publishing Company.

Gaya MLA

E, Ensminger,M.. et al. "Feeds and Nutrition (Formerly Feeds and Nutrition-Complete)". 2nd California: The Esminger Publishing Company, 1990. Text.