APA (7th ed.) Citation

Geological Survey (U.S.) & United States. National Aeronautics and Space Administration. (1973). Nation's capital area: [Washington D.C. and Cheaspeake Bay regions]. Interior--Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and United States. National Aeronautics and Space Administration. Nation's Capital Area: [Washington D.C. and Cheaspeake Bay Regions]. Washington, D.C.: Interior--Geological Survey, 1973.

MLA (8th ed.) Citation

Geological Survey (U.S.) and United States. National Aeronautics and Space Administration. Nation's Capital Area: [Washington D.C. and Cheaspeake Bay Regions]. Interior--Geological Survey, 1973.