Quarry problems from the engineer's viewpoint

Author:	Bowles, Oliver,
Year:	1923
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:2429
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	2429
Subjects:	Quarries and quarrying--Safety measures
	Mining engineering
	Quarries and quarrying
Link:	https://hdl.handle.net/2027/mdp.39015086554758