APA (7th ed.) Citation

Campbell, B. A., & Clark, D. A. (2006). Geologic map of the Mead quadrangle (V-21), Venus (Version 1.0.). U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Campbell, Bruce A., and David A. Clark. Geologic Map of the Mead Quadrangle (V-21), Venus. Version 1.0. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2006.

MLA (9th ed.) Citation

Campbell, Bruce A., and David A. Clark. Geologic Map of the Mead Quadrangle (V-21), Venus. Version 1.0. U.S. Dept. of the Interior, U.S. Geological Survey, 2006.