CRAVENS, R. H. (1979). Vines Richard H. Cravens. Time Life Books.
Lua i Stíl Chicago (17ú heag.)CRAVENS, Richard H. Vines Richard H. Cravens. Time Life Books, 1979.
Lua MLA (8ú heag.)CRAVENS, Richard H. Vines Richard H. Cravens. Time Life Books, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.