| Author: | Girard, Roselle M., 1918- |
| Subject: | QE, Petrology, Petrology -- Texas, Mineralogy -- Texas |
| Format: | Electronic text |
| Date issued: | 2016 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Texas Rocks and Minerals : An Amateur's Guide [electronic resource] / Roselle M. Girard |