Mining methods and costs at the Hart Spur pit of the Fort Worth Sand & Gravel Co., Inc., Fort Worth, Tex.

Author:	Popplewell, Thomas E.
Year:	1932
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6652
Series:	Information circular / Bureau of Mines ;
Report Number:	6652
Subjects:	Mining engineering--Texas
	Mines and mineral resources--Texas
	Mineral industries--Texas
Link:	https://hdl.handle.net/2027/mdp.39015086485714