TY  - BOOK
AU  - Rana,S V S  .
AU  - Agrawal,V P  .
TI  - Environment and natural resource / 
U1  - 333.7 
PY  - 1985///
CY  - New Delhi : 
PB  - Society of biosciences , 
KW  - NATURAL RESOURCE
N1  - NULL
ER  -