APA (7th ed.) Citation

Drake, A. A. (1998). Geologic map of the Piedmont in the Savage and Relay quadrangles, Howard, Baltimore, and Anne Arundel Counties, Maryland. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Drake, Avery Ala. Geologic Map of the Piedmont in the Savage and Relay Quadrangles, Howard, Baltimore, and Anne Arundel Counties, Maryland. Reston, VA: U.S. Department of the Interior, U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Drake, Avery Ala. Geologic Map of the Piedmont in the Savage and Relay Quadrangles, Howard, Baltimore, and Anne Arundel Counties, Maryland. U.S. Department of the Interior, U.S. Geological Survey, 1998.