Assigning an area of influence for an assay obtained in mine sampling

Author:	Hazen, Scott Wike,
Year:	1967
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:6955
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	6955
Subjects:	Assaying
	Ores--Sampling and estimation
Link:	https://hdl.handle.net/2027/mdp.39015078478669