Karia, G.L. Wastewater treatment : Concepts and design approach [2nd ed.] - 2nd ed.[2013]. Rep.2019 - New Delhi PHI Learning 2013 - xiii, 437p. ; 23 cm. ISBN: 9788120347359 Subjects--Topical Terms: Sewage--Purification--Data processing ; CE208 Dewey Class. No.: 628.3 / KAR.2E