TY  - BOOK
AU  - Longley,Paul A.
TI  - Geographical information systems
SN  - 0471331325 :
U1  - 910 
PY  - 1999///
CY  - New York
PB  - John Wiley
KW  - Geographic information systems
KW  - Information storage and retrieval systems
KW  - Geography
KW  - Data processing
N1  - Includes bibliographical references and index; Vol. 1. Principles and technical issues -- v. 2. Management issues and applications
ER  -