TY  - BOOK
TI  - Geographical information systems
SN  - 0471331325 (vol. 1)
AV  - G70.2 G45 1999
PY  - 1999///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Geographic information systems
N1  - Includes bibliographical references and index; v. 1. Principles and technical issues -- v. 2. Management issues and applications
ER  -