TY  - BOOK
AU  - Worboys,Michael
AU  - Duckham,Matt
TI  - GIS: a computing perspective 
SN  - 0415283752
AV  - G70.212 W672G 2004
PY  - 2004///
CY  - Boca Raton, Fla.
PB  - CRC Press
KW  - GEOGRAPHIC INFORMATION SYSTEMS
N1  - Includes bibliographical references and index
ER  -