Men and mines

Author:	Turner, Scott.
Year:	1930
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6418
Series:	Information circular / Bureau of Mines ;
Report Number:	6418
Subject:	Mines and mineral resources--United States
Links:	https://hdl.handle.net/2027/mdp.39015074127526
	https://hdl.handle.net/2027/mdp.39015095085760