TY  - BOOK
AU  - Ray,S.
TI  - Intepretation and making of Geological Maps
U1  - 526.8 
PY  - 1965///
CY  - Kolkata
PB  - A.Ray
KW  - Map projection -
KW  - Mathematical geography - Maps -
N1  - First edition. April 1965,copyright S.Roy, Printing by Sunil Roy, Kolkata
ER  -