1. Large and rich phosphorus resources in the Phosphoria Formation in the Soda Springs area, southeastern Idaho Author/Creator: Gulbrandsen, Robert A., author Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1980 Resource Type: Book Access & Availability: Loading
2. Las Animas Formation (upper Precambrian) in the subsurface of southeastern Colorado Author/Creator: Tweto, Ogden, 1912-1983 Publication/Creation: [Washington, D.C.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1983 Resource Type: Book Access & Availability: Loading
3. Late Cenozoic stratigraphic units, northeastern San Joaquin Valley, California Author/Creator: Marchand, Denis E., author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1981 Resource Type: Book Access & Availability: Loading
4. The Lawson Creek Formation of Middle Proterozoic age in east-central Idaho Author/Creator: Hobbs, S. W. 1911- (Samuel Warren), author Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1980 Resource Type: Book Access & Availability: Loading
5. The Lawson Creek Formation of Middle Proterozoic age in east-central Idaho Author/Creator: Hobbs, S. W. 1911- (Samuel Warren) Publication/Creation: Washington : U.S. Govt. Print. Off. : For sale by Supt. of Docs, 1980 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1478-1482. Access & Availability: Loading
6. The Lewis thrust fault and related structures in the disturbed belt, northwestern Montana Author/Creator: Mudge, Melville R., 1921- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1980 Resource Type: Book Access & Availability: Loading
7. Lexicon of geologic names of the United States for 1968-1975 Author/Creator: Luttrell, Gwendolyn Lewise Werth, 1927- author Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1981 Resource Type: Book Access & Availability: Loading
8. Lithostratigraphy of the Silurian rocks exposed on the west side of the Cincinnati arch in Kentucky Author/Creator: Peterson, Warren Lee, 1925- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1981 Resource Type: Book Access & Availability: Loading
9. Lithostratigraphy of upper Ordovician strata exposed in Kentucky Author/Creator: Weir, Gordon W. 1922-2011, (Gordon Whitney), author Publication/Creation: Washington : Department of the Interior, U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading