Cita APA (7a ed.)
American Water Works Association & ebrary, Inc. (2003). Recommended practice for backflow prevention and cross-connection control (3rd ed.). American Water Works Association.
Cita Chicago Style (17a ed.)
American Water Works Association y Inc ebrary. Recommended Practice for Backflow Prevention and Cross-connection Control. 3rd ed. Denver, Colo.: American Water Works Association, 2003.
Cita MLA (9a ed.)
American Water Works Association y Inc ebrary. Recommended Practice for Backflow Prevention and Cross-connection Control. 3rd ed. American Water Works Association, 2003.
Precaución: Estas citas no son 100% exactas.