TY  - BOOK
AU  - Roy,Asit K.
TI  - Introduction to the study of geological maps
U1  - 912 ROY 
PY  - 1966///
CY  - Calcutta
PB  - The World Press Private Limited
KW  - General geography
KW  - Graphic representations of earth's surface
KW  - Introduction to the study of geological maps
ER  -