Haffert, J. M. (1943). Saturday in purgatory? Scapular Press.
Lua i Stíl Chicago (17ú heag.)Haffert, John M. Saturday in Purgatory? New York, N.Y.: Scapular Press, 1943.
Lua MLA (8ú heag.)Haffert, John M. Saturday in Purgatory? Scapular Press, 1943.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.