1. Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin region, northwestern Colorado and northeastern Utah Author/Creator: Johnson, Samuel Y., author Publication/Creation: Washington, DC : U.S. G.P.O. ; Denver, CO : For sale by Book and Open-File Report Sales, U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
2. Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin region, northwestern Colorado and northeastern Utah Author/Creator: Johnson, Samuel Y., author Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
3. Pennsylvanian and Permian rocks of the southern Inyo Mountains, California Author/Creator: Merriam, C. W. 1905-1974. (Charles Warren) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1957 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1061. Access & Availability: Loading
4. Pennsylvanian and Permian rocks of the southern Inyo Mountains, California Author/Creator: Merriam, C. W. 1905-1974, (Charles Warren), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey Resource Type: Book Access & Availability: Loading
5. Pennsylvanian and Permian stratigraphy of the northern Argus Range-Darwin Canyon area, California Author/Creator: Stone, Paul, 1947- author Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading
6. Plant fossils from the Pennsylvanian-Permian Transition in western Pangea, Abo Pass, New Mexico Author/Creator: DiMichele, William A., author Publication/Creation: Washington, D.C. : Smithsonian Institution Scholarly Press, 2017 Resource Type: Book Access & Availability: Loading
7. Plant fossils from the Pennsylvanian-Permian Transition in western Pangea, Abo Pass, New Mexico Author/Creator: DiMichele, William A., author Publication/Creation: Washington, D.C. : Smithsonian Institution Scholarly Press, 2017 Resource Type: Book Access & Availability: Loading
8. Proceedings of the first I. C. White Memorial Symposium "The Age of the Dunkard," September 25-29, 1972 Author/Creator: I. C. White Memorial Symposium Morgantown, W. Va.) 1972 : (1st Publication/Creation: Morgantown : West Virginia Geological and Economic Survey, 1975 Resource Type: Book Access & Availability: Loading