APA (7th ed.) Citation

Ashbrook, F. G., & Wilson, A. (1920). Feeding garbage to hogs. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Ashbrook, F. G., and A. Wilson. Feeding Garbage to Hogs. Washington, D.C: U.S. Dept. of Agriculture, 1920.

MLA (9th ed.) Citation

Ashbrook, F. G., and A. Wilson. Feeding Garbage to Hogs. U.S. Dept. of Agriculture, 1920.