Assaying ores, concentrates, and bullion
By: by H. H. Heady and K. G. Broadhead
Contributors: Broadhead, Kenneth G., jt. auth; United States. Bureau of Mines
Series: Information circular - Bureau of Mines ; 8714; Information circular  (United States. Bureau of Mines) -- 8714
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1976
Place of publication: [Washington]
Language: eng
Number of pages: 24
Subjects: Ores -- United States -- Sampling and estimation; Precious metals -- Assaying -- United States.
Notes: Revision of Information Circular 7695

Bibliography: p. 11