TY  - RPRT
TI  - ERTS photography already useful
AU  - Daniel, J. F.
AU  - Colvocoresses, A. P.
AU  - Wray, J. R.
AU  - Carter, W. D.
PY  - 1972
UR  - https://ntrs.nasa.gov/citations/19720023686
ID  - 19720023686
ER  -