Spence. A History of Gold Dredging in Idaho. University Press of Colorado.
Lua i Stíl Chicago (17ú heag.)Spence. A History of Gold Dredging in Idaho. University Press of Colorado.
Lua MLA (9ú heag.)Spence. A History of Gold Dredging in Idaho. University Press of Colorado.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.