U.S. Geological Survey Eastern Oregon and Washington Province Assessment Team & National Assessment of Oil and Gas Project (U.S.). (2008). Geologic assessment of undiscovered gas resources of the eastern Oregon and Washington Province (Version 1.0.). U.S. Geological Survey.
Chicago Style (17th ed.) CitationU.S. Geological Survey Eastern Oregon and Washington Province Assessment Team and National Assessment of Oil and Gas Project (U.S.). Geologic Assessment of Undiscovered Gas Resources of the Eastern Oregon and Washington Province. Version 1.0. Reston, Va.: U.S. Geological Survey, 2008.
MLA (9th ed.) CitationU.S. Geological Survey Eastern Oregon and Washington Province Assessment Team and National Assessment of Oil and Gas Project (U.S.). Geologic Assessment of Undiscovered Gas Resources of the Eastern Oregon and Washington Province. Version 1.0. U.S. Geological Survey, 2008.