APA-referens (7:e uppl.)

Becker, G. F. (1888). Geology of the Quicksilver Deposits of the Pacific Slope, with an atlas (1a. ed.). Government Printing Office.

Chicago-referens (17:e uppl.)

Becker, George F. Geology of the Quicksilver Deposits of the Pacific Slope, with an Atlas. 1a. ed. Washington, D.C: Government Printing Office, 1888.

MLA-referens (9:e uppl.)

Becker, George F. Geology of the Quicksilver Deposits of the Pacific Slope, with an Atlas. 1a. ed. Government Printing Office, 1888.