TY  - RPRT
TI  - The construction of thematic land use maps with spacecraft photography
AU  - David E. Schwarz
AU  - D.S. Simonett
AU  - G.F. Jenks
AU  - J.R. Ratzlaff
PY  - 1969
DO  - 10.3133/ofr69243
UR  - https://pubs.usgs.gov/publication/ofr69243
ID  - ofr69243
ER  -