Ventilation in metal mines :a preliminary report

Author: Harrington, D.
Year: 1921
Document Type: USBM
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.7:251
Series: Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number: 251
Subject: Mine ventilation--United States
Link: https://hdl.handle.net/2027/mdp.39015077559899

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