TY  - BOOK
AU  - Freden S C comp.
ED  - Earth Resources Technology Satellite-1 Symposium (3rd : 1973 : Washington)
ED  - 
TI  - Proceedings; v.1: technical presentations, section B
U1  - 339.018 
CY  - Washington
PB  - National Aeronautics & Space Administration
KW  - Income and wealth
ER  -