TY  - BOOK
AU  - 
AU  - 
ED  - International Workshop on Earth Resources Survey Systems, 
ED  - United States.
ED  - United States.
TI  - Proceedings of the International workshop on earth resources survey systems
U1  - US621.3670973 23rd ed.
PY  - 1971///
CY  - Washington D.C.
PB  - NASA
KW  - Remote sensing
KW  - Congresses
KW  - Natural resources
KW  - Surveying
N1  - Library has Vol.2(May 3-14,1971; Index3
ER  -