01600oam 2200421 a 450 991070174480332120120427115223.0(CKB)5470000002420651(OCoLC)790400565(EXLCZ)99547000000242065120120427d1964 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierIdentification of tree species on large-scale panchromatic and color aerial photographs[electronic resource] /by R.C. Heller, G.E. Doverspike, and R.C. AldrichWashington, D.C. :U.S. Dept. of Agriculture, Forest Service,1964.1 online resource (17 pages) illustrations (some color)Agriculture handbook / United States Department of Agriculture ;no. 261Includes bibliographical references (page 15).Aerial photography in forestryPhotographic interpretationTreesMinnesotaElyIdentificationAerial photography in forestry.Photographic interpretation.TreesHeller Robert Chester1918-1421611Doverspike George E1421612Aldrich Robert Clement1922-1421613United States.Forest Service.GPOGPOGPOBOOK9910701744803321Identification of tree species on large-scale panchromatic and color aerial photographs3543398UNINA