Brain, R. (1976). The last primitive peoples. Crown Publishers, Inc.
Lua i Stíl Chicago (17ú heag.)Brain, Robert. The Last Primitive Peoples. New York: Crown Publishers, Inc, 1976.
Lua MLA (9ú heag.)Brain, Robert. The Last Primitive Peoples. Crown Publishers, Inc, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.