TY  - BOOK
AU  - Purohit,S S.
AU  - Ranjan,Rajiv  .
TI  - Ecology, environment and pollution / 
SN  - 8177541692
U1  - 577 
PY  - 2003///
CY  - Jodhpur : 
PB  - Agrobios (India) , 
KW  - ECOLOGY
N1  - Include glossary, index
ER  -