APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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