TY  - BOOK
AU  - Loelkes,George L.
ED  - United States
TI  - Land use/land cover and environmental photointerpretation keys
T2  - U.S. Geological Survey bulletin
U1  - 333.7313028 
PY  - 1983///
CY  - [Reston, Va.?]
PB  - U.S. Dept. of the Interior, Geological Survey
KW  - Land use
KW  - Remote sensing
KW  - Photographic interpretation
N1  - Item 620
ER  -