Physiological factors in mine ventilation in 1931 / by R.R. Sayers.
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Other title: | Mine ventilation. |
Format: | Government Document Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1932.
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Series: | Information circular (United States. Bureau of Mines) ;
6645. |
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