APA (7th ed.) Citation

Geological Survey (U.S.). (1999). Virginia. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Virginia. [Reston,Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

MLA (9th ed.) Citation

Geological Survey (U.S.). Virginia. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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