APA (7 ম সংস্করণ) উদ্ধৃতি

John XXIII, P. (1959). A letter from His Holiness, Pope John XXIII. Servants of the Holy Paraclete.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

John XXIII, Pope. A Letter from His Holiness, Pope John XXIII. Randolph, Vt.: Servants of the Holy Paraclete, 1959.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

John XXIII, Pope. A Letter from His Holiness, Pope John XXIII. Servants of the Holy Paraclete, 1959.