TY  - BOOK
AU  - Agarwal S.K.
TI  - Eco-informatics. 5 V
SN  - 8176483249
U1  - U:(G:55).2.P, P2.3-5 
PY  - 2002///
CY  -  New Delhi 
PB  - APH Publishers        
KW  - Geography irt Environment
ER  -