Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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