year of pub­li­ca­ti­onISBNauthor(s)title
1994978-99943-700-7-8John J. McClellandAn Evaluation and Forecasting Model for Metal-Nonmetal Mining Research Needs: Model Development for Computer-Assisted Technology (Information)
  ''978-99943-700-8-5Jennifer S. Riefenberg · William J. WuestA Personal Computer Program and Spreadsheet for Calculating the Practical Coal Mine Roof Rating (Information Circular)