TY  - BOOK
ED  - GIS/LIS '89.
ED  - American Congress on Surveying and Mapping.
ED  - American Society for Photogrammetry and Remote Sensing.
TI  - GIS/LIS '89: proceedings of the annual conference and exposition 
SN  - 0944426611 (pbk.)
PY  - 1989///
CY  - Bethesda, Maryland
PB  - American Society for Photogrammetry and Remote Sensing, American Congress on Surveying and Mapping
KW  - Geography
KW  - Data processing
KW  - Congresses
KW  - Information storage and retrieval systems
N1  - Includes bibliographical references
ER  -