European Water Pollution Control Association. (1991). European water pollution control. Elsevier Science.
Lua i Stíl Chicago (17ú heag.)European Water Pollution Control Association. European Water Pollution Control. Amsterdam: Elsevier Science, 1991.
Lua MLA (8ú heag.)European Water Pollution Control Association. European Water Pollution Control. Elsevier Science, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.