TY  - BOOK
AU  - Heller,Robert Chester
AU  - Doverspike,G.E.
AU  - Aldrich,Robert Clement
TI  - Identification of tree species on large-scale panchromatic and color aerial photographs: by R.C. Heller, G.E. Doverspike, and R.C. Aldrich
T2  - Agriculture handbook / United States Department of Agriculture
AV  - SD387.A25 H4
PY  - 1964///
CY  - Washington, D.C.
PB  - U.S. Dept. of Agriculture, Forest Service
KW  - Aerial photography in forestry
KW  - Photographic interpretation
KW  - Trees
KW  - Minnesota
KW  - Ely
KW  - Identification
N1  - Bibliography: p. 15
ER  -