Citazione Stile APA (7a Edizione)

American Water Works Association & ebrary, Inc. (2002). Safety practices for water utilities (6th ed.). American Water Works Association.

Citazione stile Chigago Style (17a edizione)

American Water Works Association e Inc ebrary. Safety Practices for Water Utilities. 6th ed. Denver, CO: American Water Works Association, 2002.

Citatione MLA (9a ed.)

American Water Works Association e Inc ebrary. Safety Practices for Water Utilities. 6th ed. American Water Works Association, 2002.