TY  - BOOK
AU  - Prabhakar,V.K..
TI  - Natural environment.: issues and challenges. 
SN  - 81-261-0917-3
U1  - 333.7 PRA. 
PY  - 2001///
CY  - New Delhi
PB  - Anmol
N1  - Includes bibliographical references and index
ER  -