Accidents from explosives at metal and nonmetallic mines

Author:	Cash, Frank E.
Year:	1957
Document Type:	N/A
SUDOC:	I 28.6:54/957
Series:	Miners' circular (United States. Bureau of Mines)
Subjects:	Mine accidents -- United States.
	Mine explosions -- United States -- Prevention.
	Mine safety -- United States.
Link:	http://digital.library.unt.edu/ark:/67531/metadc40319/