Identification of tree species on large-scale panchromatic and color aerial photographs by R.C. Heller, G.E. Doverspike, and R.C. Aldrich Heller, Robert Chester 1918- creator Doverspike, G. E. Aldrich, Robert Clement 1922- text bibliography dcu Washington, D.C U.S. Dept. of Agriculture, Forest Service 1964 monographic eng
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17 p. : illus. 27 cm. Bibliography: p. 15. n-us-mn Aerial photography in forestry Photographic interpretation Trees Minnesota Ely Identification SD387.A25 H4 Agriculture handbook (United States. Department of Agriculture) ; no. 261 agr64000381 U.S. Nat'l Agr. Libr. 770208 20260227111023.0 agr64000381