Assaying ores, concentrates, and bullion

Author:	Heady, Howard H.
Additional Authors:	Broadhead, Kenneth G.,
Year:	1976
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8714
Series:	Information circular - Bureau of Mines ;
Report Number:	8714
Subjects:	Precious metals--Assaying--United States
	Ores--United States--Sampling and estimation
Link:	https://hdl.handle.net/2027/mdp.39015078463307