Chittenden, N. H. (1965). Travels in Oregon, Washington and northern Idaho .. Research Publications.
Lua i Stíl Chicago (17ú heag.)Chittenden, Newton H. Travels in Oregon, Washington and Northern Idaho .. New Haven, Conn.: Research Publications, 1965.
Lua MLA (8ú heag.)Chittenden, Newton H. Travels in Oregon, Washington and Northern Idaho .. Research Publications, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.