Cummings, D. (1972). Geologic map of the Clavius quadrangle of the Moon. U.S. Geological Survey.
Chicago Style (17th ed.) CitationCummings, David. Geologic Map of the Clavius Quadrangle of the Moon. Washington, D.C.: U.S. Geological Survey, 1972.
MLA (9th ed.) CitationCummings, David. Geologic Map of the Clavius Quadrangle of the Moon. U.S. Geological Survey, 1972.
Warning: These citations may not always be 100% accurate.