Oregon. Department of Geology and Mineral Industries. (1968). Oregon's gold placers. Issued by State of Oregon, Department of Geology and Mineral Industries.
Cita Chicago Style (17a ed.)Oregon. Department of Geology and Mineral Industries. Oregon's Gold Placers. [Salem, Or.]: Issued by State of Oregon, Department of Geology and Mineral Industries, 1968.
Cita MLA (8a ed.)Oregon. Department of Geology and Mineral Industries. Oregon's Gold Placers. Issued by State of Oregon, Department of Geology and Mineral Industries, 1968.
Precaución: Estas citas no son 100% exactas.