APA (7th ed.) Citation

Geological Survey (U.S.) & Stone, P. (2017). Geologic map of the Providence Mountains in parts of the Fountain Peak and adjacent 7.5' quadrangles, San Bernardino County, California. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Paul Stone. Geologic Map of the Providence Mountains in Parts of the Fountain Peak and Adjacent 7.5' Quadrangles, San Bernardino County, California. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2017.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Paul Stone. Geologic Map of the Providence Mountains in Parts of the Fountain Peak and Adjacent 7.5' Quadrangles, San Bernardino County, California. U.S. Department of the Interior, U.S. Geological Survey, 2017.