Citations are generated automatically from bibliographic data as
a convenience, and may not be complete or accurate.
Chicago citation style:
Geological Survey, U.S. Washington and vicinity, Maryland, District of Columbia, Virginia. [Washington, D.C.: Dept. of the Interior, U.S. Geological Survey, 1929] Map. https://www.loc.gov/item/87693006/.
APA citation style:
Geological Survey, U. S. (1929) Washington and vicinity, Maryland, District of Columbia, Virginia. [Washington, D.C.: Dept. of the Interior, U.S. Geological Survey] [Map] Retrieved from the Library of Congress, https://www.loc.gov/item/87693006/.
MLA citation style:
Geological Survey, U.S. Washington and vicinity, Maryland, District of Columbia, Virginia. [Washington, D.C.: Dept. of the Interior, U.S. Geological Survey, 1929] Map. Retrieved from the Library of Congress, <www.loc.gov/item/87693006/>.