1. The Belt series in Montana : data on the Belt series in Montana, and related rocks, with a stratigraphic classification Author/Creator: Ross, Clyde P. 1891-1965, (Clyde Polhemus), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1963 Resource Type: Book Access & Availability: Loading
2. The Belt series in Montana; : data on the Belt series in Montana, and related rocks, with a stratigraphic classification Author/Creator: Ross, Clyde P. 1891-1965. (Clyde Polhemus) Publication/Creation: Washington : U.S. Govt. Print. Off, 1963 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 345-348.. Access & Availability: Loading
3. Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian boundary in Montana, Author/Creator: Maughan, Edwin K., 1926-1995 Publication/Creation: Washington : U.S. Govt. Print. Off, 1967 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 551-554. Access & Availability: Loading
4. Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian boundary in Montana Author/Creator: Maughan, Edwin K., 1926-1995, author Publication/Creation: Washington : U.S. Department of the Interior, Geological Survey, 1967 Resource Type: Book Access & Availability: Loading
5. Biostratigraphy of the Phosphoria, Park City, and Shedhorn Formations Author/Creator: Yochelson, Ellis L. 1928-2006, (Ellis Leon), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1968 Resource Type: Book Access & Availability: Loading