APA (7th ed.) Citation

Carr, M. S. (1950). The District of Columbia, its rocks and their geologic history: With notes on the geography, early history and stone used in buildings and monuments. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Carr, Martha S. The District of Columbia, Its Rocks and Their Geologic History: With Notes on the Geography, Early History and Stone Used in Buildings and Monuments. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1950.

MLA (9th ed.) Citation

Carr, Martha S. The District of Columbia, Its Rocks and Their Geologic History: With Notes on the Geography, Early History and Stone Used in Buildings and Monuments. United States Department of the Interior, Geological Survey, 1950.