TY  - BOOK
TI  - Technical papers 1989 ASPRS/ACSM annual convetion
SN  - 0-9444426-51-4
AV  - FASS G 70.212 .A44 1990 
PY  - 1989///
CY  - America
PB  - American society for photogrammerty
KW  - Geographical Information Systems
ER  -