TY  - BOOK
AU  - Trivedi P R
AU  - B
ED  - 
TI  - Encyclopaedia of environment,pollution,planning and conservation: Ecology and environment
SN  - 8176480045
U1  - 363.703 tri/enc 
PY  - 1998///
CY  - New Delhi
PB  - A P H Publishers
N1  - 4
ER  -