TY  - BOOK
AU  - Prabhakar, V.K
TI  - Natural environment:Issues and challenges
SN  - 8126109173
U1  - 333.7 
PY  - 2001///
CY  - New Delh
PB  - Anmol Publications Pvt Ltd.
N1  - Encyclopedia of environmental pollution and awareness in 21st century series
ER  -