APA (7th ed.) Citation
John Wiley & Sons, Inc, Jorgensen Sven Erik, & Mitsch William J. (1989). Ecological enginneering: An introduction to ecotechnology. John Wiley & Sons, Inc.
Chicago Style (17th ed.) Citation
John Wiley & Sons, Inc, Jorgensen Sven Erik, and Mitsch William J. Ecological Enginneering: An Introduction to Ecotechnology. John Wiley & Sons, Inc, 1989.
MLA (9th ed.) Citation
John Wiley & Sons, Inc, et al. Ecological Enginneering: An Introduction to Ecotechnology. John Wiley & Sons, Inc, 1989.
Warning: These citations may not always be 100% accurate.