APA (7th ed.) Citation

Butts, C. (1905). Geologic atlas of U.S.: Ebensburg folio, Pennsylvania. [s.n.].

Chicago Style (17th ed.) Citation

Butts, Charles. Geologic Atlas of U.S.: Ebensburg Folio, Pennsylvania. Washington, D.C.: [s.n.], 1905.

MLA (8th ed.) Citation

Butts, Charles. Geologic Atlas of U.S.: Ebensburg Folio, Pennsylvania. [s.n.], 1905.