TY  - BOOK
AU  - Heywood,D.Ian
AU  - Cornelius,Sarah
AU  - Carver,Steve
TI  - An introduction to geographical information systems
SN  - 9788131731932
U1  - 910.285 22
PY  - 2006///
CY  - New delhi
PB  - pearson
KW  - Geographic information systems
N1  - Includes bibliographical references (p. [400]-411) and index
ER  -