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1Subjects: “...Petroleum Geology Appalachian Mountains....”
Government Document Book -
2by DeWitt, Wallace, 1920-Subjects: “...Petroleum Geology Appalachian Mountains Maps....”
Published 1975
Government Document Map -
3by De Witt, Wallace, Jr., 1920-2012Subjects: “...Petroleum Geology Appalachian Mountains Maps....”
Published 1975
Government Document Map -
4by Miller, Ralph L. (Ralph LeRoy), 1909-1991Subjects: “...Petroleum Geology Appalachian Mountains Maps....”
Published 1975
Government Document Map -
5by Harris, Leonard D.Subjects: “...Petroleum Geology Appalachian Mountains Maps....”
Published 1975
Government Document Map