1. Cambrian and Ordovician rocks of southern Arizona and New Mexico and westernmost Texas Author/Creator: Hayes, Philip T. 1923- (Philip Thayer), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1975 Resource Type: Book Access & Availability: Loading
2. Cambrian and Ordovician rocks of southern Arizona and New Mexico and westernmost Texas Author/Creator: Hayes, Philip T. 1923- (Philip Thayer) Publication/Creation: Washington : U.S. Govt. Print. Off, 1975 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no.871-879. Access & Availability: Loading
3. Cambrian rocks of the Pioche mining district, Nevada Author/Creator: Merriam, C. W. 1905-1974, (Charles Warren), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1964 Resource Type: Book Access & Availability: Loading
4. Cambrian rocks of the Pioche mining district, Nevada Author/Creator: Merriam, C. W. 1905-1974. (Charles Warren) Publication/Creation: Washington : U.S. Govt. Print. Off, 1964 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 466-472. Access & Availability: Loading
5. Cambrian trilobites of east-central Alaska, Author/Creator: Palmer, Allison R. Publication/Creation: Washington : U.S. Govt. Print. Off, 1968 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 559 A-B. Access & Availability: Loading
6. Cambrian trilobites of east-central Alaska Author/Creator: Palmer, Allison R., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1968 Resource Type: Book Access & Availability: Loading
7. The central Virginia volcanic-plutonic belt : an island arc of Cambrian(?) age Author/Creator: Pavlides, Louis, 1921- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1981 Resource Type: Book Access & Availability: Loading
8. The central Virginia volcanic-plutonic belt : an island arc of Cambrian age Author/Creator: Pavlides, Louis, 1921- Publication/Creation: Washington : U.S. G.P.O., 1981 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1228-1231. Access & Availability: Loading