TY  - BOOK
ED  - ASPRS-ACSM Annual Convention
TI  - Technical papers.Vol.3
T2  - Remote sensing ; 
AV  - GY TA502.A47 Vol.3 
PY  - 1989///
CY  - Bethesda, MD : 
PB  - American Congress on Surveying and Mapping
KW  - Cartography
KW  - Geographical information systems
N1  - Includes bibliographical references
ER  -