Becker, G. F. (1888). Geology of the Quicksilver Deposits of the Pacific Slope, with an atlas (1a. ed.). Government Printing Office.
Chicago-viite (17. p.)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-viite (9. p.)Becker, George F. Geology of the Quicksilver Deposits of the Pacific Slope, with an Atlas. 1a. ed. Government Printing Office, 1888.
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