TY  - BOOK
AU  - Masters, Gilbert M   .
TI  - Introduction to environmental engineering and science / 
SN  - 81  203  0881  6
U1  - 628 
PY  - 1994///
CY  - New Delhi : 
PB  - Prentice Hall of India Pvt Ltd. , 
N1  - * CSS
ER  -