APA (7th ed.) Citation

Butts, C., & Leverett, F. (1904). Geologic atlas of U.S.: Kittanning folio, Pennsylvania. [s.n.].

Chicago Style (17th ed.) Citation

Butts, Charles, and Frank Leverett. Geologic Atlas of U.S.: Kittanning Folio, Pennsylvania. Washington, D.C.: [s.n.], 1904.

MLA (8th ed.) Citation

Butts, Charles, and Frank Leverett. Geologic Atlas of U.S.: Kittanning Folio, Pennsylvania. [s.n.], 1904.