APA (7th ed.) Citation

Geological Survey (U.S.) & Moore, R. B. (1993). Geologic map of the Tombstone volcanic center, Cochise County, Arizona. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Richard B. Moore. Geologic Map of the Tombstone Volcanic Center, Cochise County, Arizona. Reston, VA: The Survey, 1993.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Richard B. Moore. Geologic Map of the Tombstone Volcanic Center, Cochise County, Arizona. The Survey, 1993.