ECKENFELDER, W. W. (1989). Industrial Water Pollution Control. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)ECKENFELDER, W. Wesley. Industrial Water Pollution Control. McGraw-Hill, 1989.
Lua MLA (8ú heag.)ECKENFELDER, W. Wesley. Industrial Water Pollution Control. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.