1. Lead-alpha ages of the Mesozoic batholiths of western North America Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1958 Resource Type: Book Access & Availability: Loading
2. A reconnaissance of the Idaho batholith and comparison with the southern California batholith Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1958 Resource Type: Book Access & Availability: Loading
3. Geology and petrology of the San Juan region, southwestern Colorado Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1956 Resource Type: Book Access & Availability: Loading
4. 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
5. The microscopic determination of the nonopaque minerals Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1934 Resource Type: Book Edition: Second edition. Access & Availability: Loading
6. The microscopic determination of the nonopaque minerals Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: [Washington, D.C.] : Department of the Interior, United States Geological Survey, 1921 Resource Type: Book Access & Availability: Loading