Barnes, R. (1982). Review of: Powers, William K.: Yuwipi: Vision and Experience in Oglala Ritual. Anthropological Society of Oxford.
Lua i Stíl Chicago (17ú heag.)Barnes, RH. Review of: Powers, William K.: Yuwipi: Vision and Experience in Oglala Ritual. Anthropological Society of Oxford, 1982.
Lua MLA (9ú heag.)Barnes, RH. Review of: Powers, William K.: Yuwipi: Vision and Experience in Oglala Ritual. Anthropological Society of Oxford, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.