APA (7th ed.) Citation

Geological Survey (U.S.) & Williams, D. L. (1988). Residual Bouguer gravity anomaly map of the Cascade Range, California, Oregon, Washington, and British Columbia. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and D. L. Williams. Residual Bouguer Gravity Anomaly Map of the Cascade Range, California, Oregon, Washington, and British Columbia. Reston, Va.: The Survey, 1988.

MLA (9th ed.) Citation

Geological Survey (U.S.) and D. L. Williams. Residual Bouguer Gravity Anomaly Map of the Cascade Range, California, Oregon, Washington, and British Columbia. The Survey, 1988.