Canopy and base load distribution on a longwall shield / by Thomas M. Barczak and David F. Gearhart

Author: Barczak, Thomas M.
Published: Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1992.
Physical Description: 23 pages : illustrations ; 28 cm.
Additional Creators: Gearhart, David F.

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I 28.23:9418

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Reproduction Note

Microform. Washington, D.C., U.S. G.P.O., 1992. 1 microfiche : negative.

View MARC record | catkey: 1877682

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