Geological Survey (U.S.), Petroleum Information Corporation, & Mast, R. F. (1998). Areas of historical oil and gas exploration and production in the conterminous United States. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Petroleum Information Corporation, and Richard F. Mast. Areas of Historical Oil and Gas Exploration and Production in the Conterminous United States. [Reston, Va.]: The Survey, 1998.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Areas of Historical Oil and Gas Exploration and Production in the Conterminous United States. The Survey, 1998.
Warning: These citations may not always be 100% accurate.