01281nam 2200361Ia 450 991069874080332120090420090138.0(CKB)5470000002396449(OCoLC)318790938(EXLCZ)99547000000239644920090420d1963 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierReports and maps of the Geological Survey released only in the open files, 1962[electronic resource] /by Betsy A. Weld, Erwin S. Asselstine, and Arthur JohnsonWashington, D.C. :U.S. Dept. of the Interior, Geological Survey,[1963?]15 pages DJVU, image fileGeological Survey circular ;473Title from title screen (viewed Apr. 20, 2009).Includes index.Bibliographies.lcgftWeld Betsy A1388375Asselstine Erwin S1404858Johnson Arthur1389164Geological Survey (U.S.)GPOGPOBOOK9910698740803321Reports and maps of the Geological Survey released only in the open files, 19623480887UNINA