TY  - BOOK
AU  - Albert K W Yeung
TI  - Concepts And Techniques Of Geographic Information Systems
SN  - 978-81-203-3914-9
U1  - 910.285 YEU/CO 
PY  - 2009///
CY  - New Delhi
PB  - PHI Learning Private Limited
KW  - introduction to geographic information
KW  - maps and geospatial data
ER  -