Birdie,G.S. Water Supply and Sanitary Engineering : Including Environmental Engineering and Pollution Control Act's / G.S.Birdie, and J.S. Birdie - 9th. ed. - ND: Dhanpat Rai Pub. 2011. - IX,1038p.: [pb] ISBN: 8187433310 Dewey Class. No.: 628.1 / BIR-W