APA (7th ed.) Citation

Darton, N. H. (1950). Configuration of the bedrock surface of the District of Columbia and vicinity. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Darton, Nelson Horatio. Configuration of the Bedrock Surface of the District of Columbia and Vicinity. Washington: United States Department of the Interior, Geological Survey, 1950.

MLA (9th ed.) Citation

Darton, Nelson Horatio. Configuration of the Bedrock Surface of the District of Columbia and Vicinity. United States Department of the Interior, Geological Survey, 1950.