John XXIII, P. (1959). A letter from His Holiness, Pope John XXIII. Servants of the Holy Paraclete.
Chicago-Zitierstil (17. Ausg.)John XXIII, Pope. A Letter from His Holiness, Pope John XXIII. Randolph, Vt.: Servants of the Holy Paraclete, 1959.
MLA-Zitierstil (8. Ausg.)John XXIII, Pope. A Letter from His Holiness, Pope John XXIII. Servants of the Holy Paraclete, 1959.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.