Surface coal mining reclamation equipment and techniques : proceedings, Bureau of Mines Technology Transfer Seminars, Evansville, Ind., June 3, 1980, and Denver, Colo., June 5, 1980 T Technology
Availability of critical scrap metals containing chromium in the United States : wrought stainless steels and heat-resisting alloys T Technology
Automatic fire protection systems for surface mining equipment : systems development and validation testing T Technology
Minerals health and safety in-house research, development, and demonstration in fiscal year 1981 T Technology
