Geological Survey (U.S.) & Aeronautical Chart and Information Center (U.S.). (1968). Transcontinental geophysical survey (35⁰ - 39⁰ N): Bouguer gravity map from 112⁰ W longitude to the coast of California. U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Aeronautical Chart and Information Center (U.S.). Transcontinental Geophysical Survey (35⁰ - 39⁰ N): Bouguer Gravity Map from 112⁰ W Longitude to the Coast of California. Washington, D.C.: U.S. Geological Survey, 1968.
MLA (9th ed.) CitationGeological Survey (U.S.) and Aeronautical Chart and Information Center (U.S.). Transcontinental Geophysical Survey (35⁰ - 39⁰ N): Bouguer Gravity Map from 112⁰ W Longitude to the Coast of California. U.S. Geological Survey, 1968.
Warning: These citations may not always be 100% accurate.