Thornton, H. V., & Aldrich, G. (1960). The government of Oklahoma. Harlow Pub. Co..
Lua i Stíl Chicago (17ú heag.)Thornton, H. V., agus Gene Aldrich. The Government of Oklahoma. Oklahoma City: Harlow Pub. Co., 1960.
Lua MLA (8ú heag.)Thornton, H. V., agus Gene Aldrich. The Government of Oklahoma. Harlow Pub. Co., 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.