Kupferberg, T. (1981). Questionable cartoons. Vanity Press.
Lua i Stíl Chicago (17ú heag.)Kupferberg, Tuli. Questionable Cartoons. New York, N.Y.: Vanity Press, 1981.
Lua MLA (8ú heag.)Kupferberg, Tuli. Questionable Cartoons. Vanity Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.