1. Alkalic rocks of Iron Hill, Gunnison County, Colorado Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1942 Resource Type: Book Access & Availability: Loading
2. Anorthosite and associated rocks in the Boehls Butte quadrangle and vicinity, Idaho Author/Creator: Hietanen, Anna Martta, 1909- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1963 Resource Type: Book Access & Availability: Loading
3. Archean and early Proterozoic tectonic framework of North-Central United States and adjacent Canada Author/Creator: Sims, P. K. 1918-2011. (Paul Kibler) Publication/Creation: [Washington, D.C.] : U.S. G.P.O., 1995 Resource Type: Book Access & Availability: Loading
4. Archean and early Proterozoic tectonic framework of North-Central United States and adjacent Canada Author/Creator: Sims, P. K. 1918-2011, (Paul Kibler), author Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading