APA (7th ed.) Citation

Junkins, R., Deeny, K., & Eckhoff, T. (1983). The activated sludge process: Fundamentals of operation. Ann Arbor Science.

Chicago Style (17th ed.) Citation

Junkins, Randy, Kevin Deeny, and Thomas Eckhoff. The Activated Sludge Process: Fundamentals of Operation. Ann Arbor, Mich.: Ann Arbor Science, 1983.

MLA (9th ed.) Citation

Junkins, Randy, et al. The Activated Sludge Process: Fundamentals of Operation. Ann Arbor Science, 1983.