(1976). Industrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Industrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
Lua MLA (8ú heag.)Industrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.