Citazione Stile APA (7a Edizione)

Parthum, C. A., & Leffel, R. E. (1993). Odor control for wastewater facilities. Water Pollution Federation.

Citazione stile Chigago Style (17a edizione)

Parthum, Charles A., e R. Ernest Leffel. Odor Control for Wastewater Facilities. Alexandría: Water Pollution Federation, 1993.

Citatione MLA (9a ed.)

Parthum, Charles A., e R. Ernest Leffel. Odor Control for Wastewater Facilities. Water Pollution Federation, 1993.