Galbreath, D. L., & Briggs, G. (1972). Papal Heraldry (2nd ed. revised by Geoffrey Briggs.). Heraldry Today.
Čikaški stil citiranja (17. izdanje)Galbreath, Donald Lindsay, i Geoffrey Briggs. Papal Heraldry. 2nd ed. revised by Geoffrey Briggs. London: Heraldry Today, 1972.
MLA način citiranja (8. izdanje)Galbreath, Donald Lindsay, i Geoffrey Briggs. Papal Heraldry. 2nd ed. revised by Geoffrey Briggs. Heraldry Today, 1972.
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