Data on metal-mine ventilation in 1929

Author: Harrington, Daniel J.
Year: 1930
Document Type: MAIN
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.11:6246
Series: Information circular / Bureau of Mines ;
Report Number: 6246
Subject: Mine ventilation
Link: https://hdl.handle.net/2027/mdp.39015095083534

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