United States. Census Office, Emmons, S. F., & Becker, G. F. (1885). Statistics and technology of the precious metals. GPO.
Chicago Style (17. basım) AtıfUnited States. Census Office, Samuel Franklin Emmons, ve George F. Becker. Statistics and Technology of the Precious Metals. Washington: GPO, 1885.
MLA (8th ed.) AtıfUnited States. Census Office, et al. Statistics and Technology of the Precious Metals. GPO, 1885.
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