Davis,Mackenzie L. Introduction to environmental engineering / Mackenzie L. Davis and David A.Cornwell. - 4th ed. - New Delhi: McGraw Hill, c 2009. - various pages: illus,table,figs,photos. 23 cm. Includes index. English. ISBN: 9780070671171 Subjects--Personal Names: Environmental engineering.Buildings--Environmental engineering. Dewey Class. No.: 628 /DAI