Cullmann, O. (1953). Peter: Disciple-Apostle-matyr. Westminister.
Lua i Stíl Chicago (17ú heag.)Cullmann, Oscar. Peter: Disciple-Apostle-matyr. Philadelphia: Westminister, 1953.
Lua MLA (9ú heag.)Cullmann, Oscar. Peter: Disciple-Apostle-matyr. Westminister, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.