APA (7th ed.) Citation

Wanless, H. R. (1946). Pennsylvanian geology of a part of the southern Appalachian coal field. [Waverly press, inc.].

Chicago Style (17th ed.) Citation

Wanless, Harold R. Pennsylvanian Geology of a Part of the Southern Appalachian Coal Field. [Baltimore]: [Waverly press, inc.], 1946.

MLA (9th ed.) Citation

Wanless, Harold R. Pennsylvanian Geology of a Part of the Southern Appalachian Coal Field. [Waverly press, inc.], 1946.