APA (7th ed.) Citation

Dibblee, T. W. (1964). Geologic map of the San Gorgonio Mountain quadrangle, San Bernardino and riverside Counties, California. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Dibblee, T. W. Geologic Map of the San Gorgonio Mountain Quadrangle, San Bernardino and Riverside Counties, California. Washington, D.C.: U.S. Geological Survey, 1964.

MLA (9th ed.) Citation

Dibblee, T. W. Geologic Map of the San Gorgonio Mountain Quadrangle, San Bernardino and Riverside Counties, California. U.S. Geological Survey, 1964.