TY  - BOOK
AU  - Sivashanmugam, P	
TI  - Basics of environmental science and engineering /			
SN  - 8189422286
U1  - 628.03 SIV 
PY  - 2007///
CY  - New Delhi : 
PB  - New India Publishing Agency, 	
N1  - Includes Index
ER  -