1. Upper Cambrian-Lower Ordovician Notch Peak Formation in western Utah Author/Creator: Hintze, Lehi F. Publication/Creation: Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey Resource Type: Book Access & Availability: Loading
2. Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico : physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations Author/Creator: Stewart, J. H., 1928-2013, author Publication/Creation: Washington : Department of the Interior, U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
3. Upper Proterozoic and Cambrian rocks in the Caborca region, Sonora, Mexico : physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations Author/Creator: Stewart, J. H., 1928-2013 Publication/Creation: Alexandria, VA : For sale by the Distribution Branch, Text Products Section, U.S. Geological Survey Resource Type: Book Access & Availability: Loading