United States. Census Office, Emmons, S. F., & Becker, G. F. (1885). Statistics and technology of the precious metals. GPO.
Chicago Style (17th ed.) CitationUnited States. Census Office, Samuel Franklin Emmons, and George F. Becker. Statistics and Technology of the Precious Metals. Washington: GPO, 1885.
MLA引文United States. Census Office, et al. Statistics and Technology of the Precious Metals. GPO, 1885.
警告:这些引文格式不一定是100%准确.