Geologic atlas of U.S.
Subtitle: Kittanning folio, Pennsylvania.
Contributors: Butts, Charles, 1863-1946.; Leverett, Frank, 1859-1943.
Series: Geologic Atlas of U.S. Folio No. 115
Publisher: [s.n.]
Published: 1904
Place of publication: Washington, D.C
Format: Microform
Subjects: Geological mapping -- Pennsylvania.