TY  - BOOK
AU  - Singh, Gopal
TI  - Map work and practical geography / 
U1  - 912.014 SIN 22nd ed. 
PY  - 1998///
CY  - New Delhi
PB  - Vikas Publishing House Pvt. Ltd.
KW  - Graphical diagrams
KW  - Map-Projections
KW  - Maps
KW  - Survey
ER  -