TY  - BOOK
AU  - Gilbert M. Masters & Wendell P.Ela
TI  - Introduction to Environmental Engineering and science
SN  - 978812036919
U1  - 628 MAS 
PY  - 2008///
CY  - New Delhi, 
PB  - PHI Learning Private Limited ; 
KW  - Civil Engineering
KW  - Environmental Engineering and Science
ER  -