Asay, S. F. (2015). Backflow prevention and cross-connection control: Recommended practices (Fourth edition.). American Water Works Association.
Cóipeáladh chuig an ngearrthaisce go rathúil é
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Lua i Stíl Chicago (17ú heag.)
Asay, Stuart F. Backflow Prevention and Cross-connection Control: Recommended Practices. Fourth edition. Denver, Colorado: American Water Works Association, 2015.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
Asay, Stuart F. Backflow Prevention and Cross-connection Control: Recommended Practices. Fourth edition. American Water Works Association, 2015.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.