APA (7th ed.) Citation

Gilbert, J.B, & American Water Works Association. (1981). Water conservation management. American Water Works Association.

Chicago Style (17th ed.) Citation

Gilbert, J.B, and American Water Works Association. Water Conservation Management. [New York?]: American Water Works Association, 1981.

MLA (9th ed.) Citation

Gilbert, J.B, and American Water Works Association. Water Conservation Management. American Water Works Association, 1981.