TY  - BOOK
AU  - Bernhardsen,Tor
TI  - Geographic information systems : an introduction / 
SN  - 9788126511389
U1  - 910.285 
PY  - 2007///
CY  - New Delhi : 
PB  - Wiley India , 
KW  - GEOGRAPHIC INFORMATION SYSTEM
N1  - Includes bibliographical references and index
ER  -