TY  - BOOK
AU  - Joseph Benny
AU  - Joseph Benny
TI  - Environmental studies
SN  - 97800706481305
U1  - 333.7 
PY  - 2012///
CY  - Newdeldi
PB  - Tata McGraw hill education private limited
KW  - natural resources
KW  - ecology
KW  - human population and the environment
ER  -