Cita APA (7th ed.)

Humenik, F. J., & Overcash, M. R. (1976). Design criteria for swine waste treatment systems. U.S. Environmental Protection Agency.

Cita Chicago (17th ed.)

Humenik, Frank J., i Michael R. Overcash. Design Criteria for Swine Waste Treatment Systems. ADA, Oklahoma: U.S. Environmental Protection Agency, 1976.

Cita MLA (9th ed.)

Humenik, Frank J., i Michael R. Overcash. Design Criteria for Swine Waste Treatment Systems. U.S. Environmental Protection Agency, 1976.