Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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