1. The Flaxville gravel and its relation to other terrace gravels of the northern great plains Author/Creator: Collier, Arthur J. 1866-1939, (Arthur James), author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1918 Resource Type: Book Access & Availability: Loading
2. A flora of Green River age in the Wind River basin of Wyoming Author/Creator: Berry, Edward Wilber, 1875-1945, author Publication/Creation: Washington : Department of the Interior, U.S. Geological Survey, 1931 Resource Type: Book Access & Availability: Loading
3. A flora of Green River age in the Wind River basin of Wyoming Author/Creator: Berry, Edward Wilber, 1875-1945 Publication/Creation: Washington : U.S. Gov't. Print. Off, 1930 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 165-168. Access & Availability: Loading
4. A flora of Pottsville Age from the Mosquito Range, Colorado Author/Creator: Read, C. B., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1934 Resource Type: Book Access & Availability: Loading
5. A Flora of Pottsville Age from the Mosquito Range, Colorado Author/Creator: Read, C. B. Publication/Creation: Washington : Govt. Print. Off, 1934 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 185 A-I. Access & Availability: Loading