APA (7th ed.) Citation

Winchester, D. E. (1916). Oil shale in Northwestern Colorado and adjacent areas. Department of the Interior, United States Geological Survey.

Chicago Style (17th ed.) Citation

Winchester, Dean E. Oil Shale in Northwestern Colorado and Adjacent Areas. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1916.

MLA (9th ed.) Citation

Winchester, Dean E. Oil Shale in Northwestern Colorado and Adjacent Areas. Department of the Interior, United States Geological Survey, 1916.