APA (7th ed.) Citation

Heady, H. H., & Broadhead, K. G. (1976). Assaying ores, concentrates, and bullion: Revision of information circular 7695. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Heady, H. H., and Kenneth G. Broadhead. Assaying Ores, Concentrates, and Bullion: Revision of Information Circular 7695. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1976.

MLA (9th ed.) Citation

Heady, H. H., and Kenneth G. Broadhead. Assaying Ores, Concentrates, and Bullion: Revision of Information Circular 7695. U.S. Dept. of the Interior, Bureau of Mines, 1976.