Geologic atlas of U.S.
Subtitle: Piedmont folio, West Virginia-Maryland.
Contributors: Darton, Nelson Horatio, 1865-1948.; Taff, Joseph A. b. 1862.; Willis, Bailey
Series: Geologic Atlas of U.S. Folio No. 28
Publisher: [s.n.]
Published: 1896
Place of publication: Washington, D.C
Format: Microform
Subjects: Geological mapping -- West Virginia.; Geological mapping -- Maryland.