TY  - BOOK
AU  - Singh, R.P.
AU  - Islam, Zubairul 
TI  - Environmental Studies
SN  - 9788180697920
U1  - 333.707/SIN/E 
PY  - 2012///
CY  - New Delhi
PB  - Concept
KW  - Environment
KW  - Studies
KW  - eco system
KW  - population
KW  - Geography
ER  -