| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1994 | 978-99943-633-6-0 | John J. McClelland | An Evaluation and Forecasting Model for Metal-Nonmetal Mining Research Needs: Model Development for Computer-Assisted Technology (Information) |
| '' | 978-99943-633-7-7 | Jennifer S. Riefenberg · William J. Wuest | A Personal Computer Program and Spreadsheet for Calculating the Practical Coal Mine Roof Rating (Information Circular) |