APA (7th ed.) Citation

Darton, N. H. (1940). Some structural features of the northern anthracite coal basin, Pennsylvania. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Darton, Nelson Horatio. Some Structural Features of the Northern Anthracite Coal Basin, Pennsylvania. Washington: United States Department of the Interior, Geological Survey, 1940.

MLA (9th ed.) Citation

Darton, Nelson Horatio. Some Structural Features of the Northern Anthracite Coal Basin, Pennsylvania. United States Department of the Interior, Geological Survey, 1940.