Schoenberg, W. P. (1981). Indians, cowboys and western art: A history of MONAC. W. Schoenberg.
Lua i Stíl Chicago (17ú heag.)Schoenberg, Wilfred P. Indians, Cowboys and Western Art: A History of MONAC. Spokane, WA: W. Schoenberg, 1981.
Lua MLA (8ú heag.)Schoenberg, Wilfred P. Indians, Cowboys and Western Art: A History of MONAC. W. Schoenberg, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.