Helium resources of the United States, 1989 by Miller, Richard D.

Coal mine bumps five case studies in the eastern United States / by Campoli, A. A. (Alan A.)

Field evaluation of the modular azimuth and positioning system (MAPS) for a continuous mining machine by Sammarco, John J.

Analysis of underground coal mine fire incidents in the United States from 1978 through 1992 by Pomroy, William H.

Use of simulation exercises for safety training in the U.S. mining industry

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Soil factors affecting mycorrhizal use in surface mine reclamation by Norland, Michael R.

The materials flow of cobalt in the United States by Shedd, Kim B.

Availability of platinum and platinum-group metals by Fogg, Catharine T.

World copper smelter sulfur balance--1988 by Towle, Stewart W.

Procedures for obtaining Department of Transportation explosive classification recommendations through the Bureau of Mines by Voigt, Donald A.

Mine drainage and surface mine reclamation proceedings of a conference /

Using light-scattering intensities to discriminate waterdrops from coal mine dusts by Vinson, Robert P.

Bismuth uses, supply, and technology / by Jasinski, Stephen M.

HEAPREC a methodology for determining cyanide heap leach reclamation performance bonds / by Denton, David K.

The material flow of salt by Kostick, Dennis S.

Strategies for improving the effectiveness of human resources by Peters, Robert H.

Viewing transformation algorithm to generate three-dimensional scenes by Rider, James P.

Instrumentation procedures for fully grouted rock bolts by Johnston, Joanne L.

Controlling coal mine floor heave an overview / by Wuest, William J.

MULSIM/NL theoretical and programmer's manual by Zipf, R. Karl