Lomax, J. P. I. (1987). Ingratus or indignus: Canonistic argument in the conflict between Pope Gregory IX and Emperor Frederick II.
Chicago-Zitierstil (17. Ausg.)Lomax, John Phillip II. Ingratus or Indignus: Canonistic Argument in the Conflict Between Pope Gregory IX and Emperor Frederick II. 1987.
MLA-Zitierstil (9. Ausg.)Lomax, John Phillip II. Ingratus or Indignus: Canonistic Argument in the Conflict Between Pope Gregory IX and Emperor Frederick II. 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.