APA (7th ed.) Citation

Riggs, J. K. (1941). Studies on carotene requirements of fattening beef cattle. [publisher not identified].

Chicago Style (17th ed.) Citation

Riggs, John Kamm. Studies on Carotene Requirements of Fattening Beef Cattle. [College Station, Texas]: [publisher not identified], 1941.

MLA (9th ed.) Citation

Riggs, John Kamm. Studies on Carotene Requirements of Fattening Beef Cattle. [publisher not identified], 1941.