Carboniferous Biostratigraphy, Western San Saba County, Texas
Robbie Rice Gries, B.S. Thesis
The University of Texas at Austin, May 1971. In the PRC-122 library.
Appendix A - Measured Sections: Names, Localities, Previous Workers - includes section abbreviates like AT, EH, MR, etc.
Appendix B - Key Localities - Location codes like C14-1, T8-2, LK-11, etc.