APA (7th ed.) Citation

Spencer, C. W., & Miller, B. M. (1982). Petroleum potential of wilderness lands, Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Spencer, Charles Winthrop, and Betty M. Miller. Petroleum Potential of Wilderness Lands, Colorado. Reston, Va.: U.S. Geological Survey, 1982.

MLA (9th ed.) Citation

Spencer, Charles Winthrop, and Betty M. Miller. Petroleum Potential of Wilderness Lands, Colorado. U.S. Geological Survey, 1982.