(1976). Industrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill.
Dyfyniad Arddull ChicagoIndustrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
Dyfyniad MLAIndustrial Wastewater Management Handbook Editors: In Chief Hardan Sing Azad. McGraw-Hill, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.