APA (7th ed.) Citation

Bradley, W. H. (1931). Origin and microfossils of the oil shale of the Green River formation of Colorado and Utah. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Bradley, Wilmot H. Origin and Microfossils of the Oil Shale of the Green River Formation of Colorado and Utah. Washington: United States Department of the Interior, Geological Survey, 1931.

MLA (9th ed.) Citation

Bradley, Wilmot H. Origin and Microfossils of the Oil Shale of the Green River Formation of Colorado and Utah. United States Department of the Interior, Geological Survey, 1931.