Rock dusting and sampling including wet rock dusting at the Bureau of Mines experimental coal mine

Author: Hartmann, Irving.
Additional Authors: Westfield, James.
Year: 1956
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7755
Series: Information circular / United States. Bureau of Mines ;
Report Number: 7755
Subject: Mineral dusts
Link: https://hdl.handle.net/2027/mdp.39015078459701

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