Multinational Conference on Mine Planning and Design (1989 : Lexington, Ky.)
Title:
Proceedings / 1989 Multinational Conference on Mine Planning and Design, May 23-26, 1989, Lexington, Kentucky ; editors, G.T. Lineberry, Kot F. Unrug ; sponsored by University of Kentucky, Department of Mining and Engineering, Institute for Mining and Minerals Research, Colorado School of Mines, Department of Mining Engineering.
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