Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Darton, Nelson Horatio and Geological Survey (U.S.)","Staunton folio, Virginia-West Virginia",Library ed,U.S. Geological Survey,1894,Geologic atlas of the United States,,,,https://cir.nii.ac.jp/crid/1130282269061405696