Rock-dusting in coal mines.

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Bibliographic Details
Online Access:	Full Text (via ProQuest)
Other Authors:	Harrington, D. (Daniel), b. 1878, Rice, George Samuel, 1866-, Sayers, R. R. (Royd Ray), 1882-
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [s.n.], 1927.
Series:	Mines Bur. Info. Circ. No. 6030.
Subjects:	Mines and mineral resources.

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Full Text (via ProQuest)

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Call Number:	C22.11-6030
C22.11-6030	Available