APA (7th ed.) Citation

Geological Survey (U.S.), Roberts, C. W., & Jachens, R. C. (1993). Isostatic residual gravity map of the San Francisco Bay Area, California. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Carter W. Roberts, and Robert C. Jachens. Isostatic Residual Gravity Map of the San Francisco Bay Area, California. Reston, VA: The Survey, 1993.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Isostatic Residual Gravity Map of the San Francisco Bay Area, California. The Survey, 1993.