TY  - BOOK
AU  - Trivedi, Priya Ranjan 	
TI  - Encyclopaedia of pollution control (Vol. 4) : 	: air and noise pollution 
U1  - 363.73 TRI 
PY  - 2007///
CY  - New Delhi : 		 	
PB  - Jnanada Prakashan
ER  -