1. Upper Ordovician and Silurian stratigraphy in Sequatchie Valley and parts of the adjacent valley and ridge, Tennessee Author/Creator: Milici, Robert C., 1931- Publication/Creation: Washington : U.S. Govt. Print. Off, 1977 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 995-999. Access & Availability: Loading
2. Upper Ordovician and Silurian stratigraphy in Sequatchie Valley and parts of the adjacent valley and ridge, Tennessee Author/Creator: Milici, Robert C., 1931- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1977 Resource Type: Book Access & Availability: Loading