APA (7th ed.) Citation

American Water Works Association. (1951). Water quality and treatment: A manual (2d ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

American Water Works Association. Water Quality and Treatment: A Manual. 2d ed. New York: [publisher not identified], 1951.

MLA (9th ed.) Citation

American Water Works Association. Water Quality and Treatment: A Manual. 2d ed. [publisher not identified], 1951.