Weldon, J., & Levitt, Z. (1977). Is there life after death. Harvest House.
Lua i Stíl Chicago (17ú heag.)Weldon, John, agus Zola Levitt. Is There Life After Death. California: Harvest House, 1977.
Lua MLA (9ú heag.)Weldon, John, agus Zola Levitt. Is There Life After Death. Harvest House, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.