01347oam 2200469 450 991071157030332120181101080029.0(CKB)5470000002484347(OCoLC)953105208(OCoLC)995470000002484347(EXLCZ)99547000000248434720160706d1946 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeologic mapping by means of graphic locator /by D.J. VarnesWashington :United States Department of the Interior, Geological Survey,1946.1 online resource (6 pages) illustration, mapCircular ;12CartographyGeologyMapsCartographyfastGeologyfastMaps.fastMaps.lcgftCartography.GeologyCartography.Geology.Varnes David J(David Joseph),1919-522214Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910711570303321Geologic mapping by means of graphic locator3528056UNINA