01216cam a22003251a 4500 agr64000381 DLC 20260227111023.0 770208s1964 dcuad b f000 0 eng c agr64000381 (OCoLC)2726555 U.S. Nat'l Agr. Libr. DI OCoLC DNAL DLC premarc n-us-mn SD387.A25 H4 1 Ag84Ah no.261 K250 F700 Heller, Robert Chester, 1918- Identification of tree species on large-scale panchromatic and color aerial photographs / by R.C. Heller, G.E. Doverspike, and R.C. Aldrich. Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1964. 17 p. : illus. 27 cm. Agriculture handbook / United States Department of Agriculture ; no. 261 Bibliography: p. 15. Aerial photography in forestry. Photographic interpretation. Trees Minnesota Ely Identification. Doverspike, G. E. Aldrich, Robert Clement, 1922- Agriculture handbook (United States. Department of Agriculture) ; no. 261. 11952 11952