TY  - BOOK
ED  - ACSM - ASPRS Annual Convention
TI  - Technical papers. Vol.1
SN  - 0-944426-69-7
AV  - GY TA502.A47 Vol.1 
PY  - 1989///
CY  - Bethesda : 
PB  - American Congress on Surveying and Mapping
KW  - Surveying
KW  - Cartography
KW  - Congresses
N1  - Includes bibliographical references
ER  -