APA (7e ed.) Bronvermelding

United States. Census Office, Emmons, S. F., & Becker, G. F. (1885). Statistics and technology of the precious metals. GPO.

Chicago (17e ed.) Bronvermelding

United States. Census Office, Samuel Franklin Emmons, en George F. Becker. Statistics and Technology of the Precious Metals. Washington: GPO, 1885.

MLA (8e ed.) Bronvermelding

United States. Census Office, et al. Statistics and Technology of the Precious Metals. GPO, 1885.