APA (7th ed.) Citation

Texas Water Utilities Association & Billings, C. H. (1975). Manual of water utility operations (6th ed.). The Association.

Chicago Style (17th ed.) Citation

Texas Water Utilities Association and Clayton H. Billings. Manual of Water Utility Operations. 6th ed. Austin: The Association, 1975.

MLA (9th ed.) Citation

Texas Water Utilities Association and Clayton H. Billings. Manual of Water Utility Operations. 6th ed. The Association, 1975.