APA (7th ed.) Citation

Johnson, S. Y., Chan, M. A., & Konopka, E. (1992). Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin region, northwestern Colorado and northeastern Utah. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Johnson, Samuel Y., Marjorie A. Chan, and Edith Konopka. Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 1992.

MLA (9th ed.) Citation

Johnson, Samuel Y., et al. Pennsylvanian and Early Permian Paleogeography of the Uinta-Piceance Basin Region, Northwestern Colorado and Northeastern Utah. U.S. Department of the Interior, U.S. Geological Survey, 1992.