"Results of spirit leveling in West Virginia, 1909-1910."; "Marshall, Robert Bradford, 1867-1949."; "West Virginia--Altitudes."; "Marshall, Robert Bradford, 1867-1949."; "1911"; "Government document. Issued as: Geological Survey (U.S.). Bulletin, 477. \"Work done in cooperation with the state of West Virginia.\" "; ""; "P674"; "pec"; "West Virginia--Altitudes."; "14256"; .