TY  - BOOK
AU  - Sarkar Ashis
TI  - Practical geography :  A systematic approach   
SN  - 812503529X
U1  - U, N7 
PY  - 1997///
CY  - Kolkata
PB  - Orient Blackswan         
KW  - Geography
N1  - Bibliography P 396-401
ER  -