TY  - BOOK
AU  - Heywood, Ian.
AU  - Cornellius, Sarah.
AU  - Carver, Steve.
AU  - Raju, Srinivasa.
TI  - An introduction to geographical information systems
SN  - 8177587846
AV  - G70.212 .H49 2006
PY  - 2006///
CY  - New Delhi
PB  - Dorling Kindersley (India) Ltd.
KW  - Geographical information systems
N1  - Includes bibliographical references and index
ER  -