Lua APA (7ú heag.)
American Water Works Association & ebrary, Inc. (2013). Nitrification prevention and control in drinking water (2nd ed.). American Water Works Association.
Lua i Stíl Chicago (17ú heag.)
American Water Works Association agus Inc ebrary. Nitrification Prevention and Control in Drinking Water. 2nd ed. Denver, Colo.: American Water Works Association, 2013.
Lua MLA (9ú heag.)
American Water Works Association agus Inc ebrary. Nitrification Prevention and Control in Drinking Water. 2nd ed. American Water Works Association, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.