Bertke, S. (1941). The possibility of invincible ignorance of the natural law. Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)Bertke, Stanley. The Possibility of Invincible Ignorance of the Natural Law. Washington, D.C.: Catholic University of America Press, 1941.
Lua MLA (8ú heag.)Bertke, Stanley. The Possibility of Invincible Ignorance of the Natural Law. Catholic University of America Press, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.