Cita APA

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

Citación estilo Chicago

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

Cita MLA

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