TY  - BOOK
AU  - Wright Richard T
AU  -  Nebel Bernard J
TI  - Environmental science :  Towards a sustainable future   
SN  - 812032157X
U1  - U:(G:55), P2 
PY  - 2002///
CY  -  New Delhi 
PB  - Prentice-Hall India        
KW  - Geography - Environment
N1  - Bibliograpghy P 631-44; Appendix P 621-30
ER  -