Glossary of Wastewater Terms.
Lua i Stíl Chicago (17ú heag.)Glossary of Wastewater Terms.
Lua MLA (9ú heag.)Glossary of Wastewater Terms.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)