Upfield, A. W. (1986). Man of two tribes. Collier Books, Macmillan Publishing Company.
Lua i Stíl Chicago (17ú heag.)Upfield, Arthur W. Man of Two Tribes. New York: Collier Books, Macmillan Publishing Company, 1986.
Lua MLA (9ú heag.)Upfield, Arthur W. Man of Two Tribes. Collier Books, Macmillan Publishing Company, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.