Geological Survey (U.S.), Sanchez, J. D., & Brown, T. L. (1986). Stratigraphic framework and coal resources of the Upper Cretaceous Blackhawk Formation in the Trail Mountain and East Mountain areas of the Wasatch Plateau Coal Field, Manti 30ʹ x 60ʹ quadrangle, Emery County, Utah. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), J. D. Sanchez, and Terrence L. Brown. Stratigraphic Framework and Coal Resources of the Upper Cretaceous Blackhawk Formation in the Trail Mountain and East Mountain Areas of the Wasatch Plateau Coal Field, Manti 30ʹ X 60ʹ Quadrangle, Emery County, Utah. Reston, Va.: The Survey, 1986.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Stratigraphic Framework and Coal Resources of the Upper Cretaceous Blackhawk Formation in the Trail Mountain and East Mountain Areas of the Wasatch Plateau Coal Field, Manti 30ʹ X 60ʹ Quadrangle, Emery County, Utah. The Survey, 1986.