Cita APA (7th ed.)

Galbreath, D. L., & Briggs, G. (1972). Papal Heraldry (2nd ed. revised by Geoffrey Briggs.). Heraldry Today.

Cita Chicago (17th ed.)

Galbreath, Donald Lindsay, i Geoffrey Briggs. Papal Heraldry. 2nd ed. revised by Geoffrey Briggs. London: Heraldry Today, 1972.

Cita MLA (8th ed.)

Galbreath, Donald Lindsay, i Geoffrey Briggs. Papal Heraldry. 2nd ed. revised by Geoffrey Briggs. Heraldry Today, 1972.