Bertke, S. (1941). The possibility of invincible ignorance of the natural law. Catholic University of America Press.
Chicago-referens (17:e uppl.)Bertke, Stanley. The Possibility of Invincible Ignorance of the Natural Law. Washington, D.C.: Catholic University of America Press, 1941.
MLA-referens (8:e uppl.)Bertke, Stanley. The Possibility of Invincible Ignorance of the Natural Law. Catholic University of America Press, 1941.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.