TY  - BOOK
AU  - Heywood, Ian.
AU  - Cornelius, Sarah.
AU  - Carver, steve.
AU  - Raju, Srinivasa.
TI  - An Introduction to geographical information systems: information systems 
SN  - 9788177587845
U1  - 910.285 23
PY  - 2006///
CY  - Delhi
PB  - Pearson Education
KW  - Geographical information systems
N1  - Includes  index
ER  -