Pitman, J. K., Spencer, C. W., & Pollastro, R. M. (1989). Petrography, mineralogy, and reservoir characteristics of the Upper Cretaceous Mesaverde Group in the east-central Piceance Basin, Colorado. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationPitman, Janet K., Charles Winthrop Spencer, and Richard M. Pollastro. Petrography, Mineralogy, and Reservoir Characteristics of the Upper Cretaceous Mesaverde Group in the East-central Piceance Basin, Colorado. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationPitman, Janet K., et al. Petrography, Mineralogy, and Reservoir Characteristics of the Upper Cretaceous Mesaverde Group in the East-central Piceance Basin, Colorado. Dept. of the Interior, U.S. Geological Survey, 1989.