01847oam 2200505 450 991070687740332120180215104429.0(CKB)5470000002458691(OCoLC)896810369(OCoLC)995470000002458691(EXLCZ)99547000000245869120141123d1974 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe logic of geological maps, with reference to their interpretation and use for engineering purposes /by David J. VarnesWashington :United States Department of the Interior, Geological Survey,1974.1 online resource (iv, 48 pages) illustrations, maps +3 platesGeological Survey professional paper ;837Title from title screen (viewed October 2, 2014)."A discussion of the definition and classification of map units, with emphasis on the problems presented by maps intended for use in civil engineering."Includes bibliographical references (pages 45-48).Engineering geologyGeologyMapsGeologyfastEngineering geologyfastMaps.fastMaps.lcgftEngineering geology.GeologyGeology.Engineering geology.Varnes David J(David Joseph),1919-522214Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910706877403321The logic of geological maps, with reference to their interpretation and use for engineering purposes3441338UNINA