TY  - BOOK
AU  - Masters, Gilbert M.,
AU  -  Ela, Wendell,
AU  - Ela, Wendell P.,
TI  - Introduction to environmental engineering and science
SN  - 9788120336919
U1  - 628 
PY  - 2008///
CY  - New Delhi:  
PB  - PHI Learning
KW  - Environmental engineering.
KW  - Environmental sciences
N1  - Other title - Environmental engineering and science
ER  -