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///, 2010 [reprinted 2009]
CY  - Harlow, England, New York, New Delhi
PB  - Pearson Prentice Hall, Dorling Kindersley (India) Pvt. Ltd.
KW  - Geographic information systems
N1  - Includes bibliographical references and index
ER  -