01762oam 2200505 450 991070409170332120150929153025.0(CKB)5470000002436733(OCoLC)883253062(EXLCZ)99547000000243673320140709d1929 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeology of the McCalls Ferry-Quarryville district, Pennsylvania /by Eleanora Bliss Knopf and Anna I. Jonas[Washington, D.C.] :Department of the Interior, U.S. Geological Survey,1929.Washington :Government Printing Office.1 online resource (xiii, 156 pages) illustrations, mapsBulletin / Department of the Interior, U.S. Geological Survey ;799Title from title screen (viewed July 8, 2014).Includes bibliographical references and index.McCalls Ferry-Quarryville district, PennsylvaniaGeologyPennsylvaniaGeology, EconomicPennsylvaniaGeologyfastGeology, EconomicfastPennsylvaniafastGeologyGeology, EconomicGeology.Geology, Economic.Knopf Eleanora Frances Bliss1883-1391933Jonas Anna I(Anna Isabel),1881-1974,Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910704091703321Geology of the McCalls Ferry-Quarryville district, Pennsylvania3525797UNINA