TY  - BOOK
AU  - Joseph benny
TI  - ENVIRONMENTAL STUDIES
SN  - 9780070648135
AV  - 005 JOB E 
U1  - 005 JOB E 
PY  - 2013///
CY  - New delhi
PB  - Tata McGrraw -hill
KW  - INDIA
ER  -