TY  - BOOK
AU  - Masters, Gilbert M. 
AU  - Ela, Wendell Phillips 
TI  - Introduction to environmental engineering and science
SN  - 9788120336919
U1  - 628 M394i3 
PY  - 2008///
CY  - New Delhi
PB  - PHI Learning Pvt. Ltd
KW  - Environmental engineering
KW  - Environmental sciences
KW  - Environmental protection
ER  -