APA (7th ed.) Citation

Wanless, H. R. (1939). Pennsylvanian correlations in the eastern interior and Appalachian coal fields. The Society.

Chicago Style (17th ed.) Citation

Wanless, Harold R. Pennsylvanian Correlations in the Eastern Interior and Appalachian Coal Fields. [New York]: The Society, 1939.

MLA (9th ed.) Citation

Wanless, Harold R. Pennsylvanian Correlations in the Eastern Interior and Appalachian Coal Fields. The Society, 1939.

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