TY  - BOOK
ED  - American Congress on Surveying and Mapping
ED  - GIS/LIS (1990 : Anaheim, Calif.)
TI  - GIS/LIS '90 proceedings vol. 2
SN  - 094442631X
AV  - G 70.2 Ame 
PY  - 1990///
CY  - Bethesda
PB  - American Society for Photgrammetry & Rem
KW  - GEOGRAPHY
KW  - GEOGRAPHIC INFORMATION SYSTEMS--CONGRESSES
ER  -