APA (7th ed.) Citation

Geological Survey (U.S.). (2011). Aberdeen quadrangle, Maryland: 7.5-minute series. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Aberdeen Quadrangle, Maryland: 7.5-minute Series. Reston, VA: U.S. Dept. of the Interior, U.S. Geological Survey, 2011.

MLA (8th ed.) Citation

Geological Survey (U.S.). Aberdeen Quadrangle, Maryland: 7.5-minute Series. U.S. Dept. of the Interior, U.S. Geological Survey, 2011.


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