Levin, M. (1973). The obsession. Simon and Schuster.
Lua i Stíl Chicago (17ú heag.)Levin, Meyer. The Obsession. New York: Simon and Schuster, 1973.
Lua MLA (8ú heag.)Levin, Meyer. The Obsession. Simon and Schuster, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.