1
Developing Eastern fossil fuel reserves : proceedings of the third Conference on mine Productivity /
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Call Number: TD8-532/C748/1976
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Published:
Call Number: TD8-532/C748/1976
2
Conference on productivity in mining, May 13-15, 1974, at University of Missouri-Rolla, Rolla, Mo. /
Corporate Authors:
Group Author:
Published:
Call Number: TD8-532/C748-1/1974
; ; ;
Group Author:
Published:
Call Number: TD8-532/C748-1/1974