APA (7th ed.) Citation

Campbell, M. R. (1899). Geologic atlas of U.S.: Bristol folio, Virginia-Tennessee. [s.n.].

Chicago Style (17th ed.) Citation

Campbell, Marius R. Geologic Atlas of U.S.: Bristol Folio, Virginia-Tennessee. Washington, D.C.: [s.n.], 1899.

MLA (8th ed.) Citation

Campbell, Marius R. Geologic Atlas of U.S.: Bristol Folio, Virginia-Tennessee. [s.n.], 1899.

Warning: These citations may not always be 100% accurate.