APA (7th ed.) Citation

Ralston Purina Company. (1972). Nutrition & management of dogs & cats (First edition.). The Company.

Chicago Style (17th ed.) Citation

Ralston Purina Company. Nutrition & Management of Dogs & Cats. First edition. St. Louis: The Company, 1972.

MLA (9th ed.) Citation

Ralston Purina Company. Nutrition & Management of Dogs & Cats. First edition. The Company, 1972.