APA (7th ed.) Citation

Dietrich, J. D., & Johnson, R. C. (2013). Simplified stratigraphic cross sections of the Eocene Green River formation in the Piceance Basin, Northwestern Colorado. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Dietrich, John D., and Ronald C. Johnson. Simplified Stratigraphic Cross Sections of the Eocene Green River Formation in the Piceance Basin, Northwestern Colorado. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2013.

MLA (9th ed.) Citation

Dietrich, John D., and Ronald C. Johnson. Simplified Stratigraphic Cross Sections of the Eocene Green River Formation in the Piceance Basin, Northwestern Colorado. U.S. Department of the Interior, U.S. Geological Survey, 2013.