1. New Cretaceous formations in the western Wyoming thrust belt Author/Creator: Rubey, William Walden, 1898-1974 Publication/Creation: Washington : U.S. Govt. Print. Off, 1973 Resource Type: Book Access & Availability: Loading
2. New Cretaceous formations in the western Wyoming thrust belt Author/Creator: Rubey, William Walden, 1898-1974, author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, U.S. Geological Survey, 1973 Resource Type: Book Access & Availability: Loading
3. Nonmarine mollusks of late Cretaceous Age from Wyoming, Utah and Colorado Author/Creator: Yen, Teng-Chien, author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1954 Resource Type: Book Access & Availability: Loading
4. Nonmarine mollusks of late Cretaceous Age from Wyoming, Utah and Colorado Author/Creator: Yen, Teng-Chien Publication/Creation: Washington : U.S. Govt. Print. Off, 1954 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 254. Access & Availability: Loading