APA (7th ed.) Citation

Catholic Church. Pope (1758-1769 : Clement XIII) & Clement XIII, P. Brefs de notre St. Pere le Pape.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1758-1769 : Clement XIII) and Pope Clement XIII. Brefs De Notre St. Pere Le Pape. [Rome?.

MLA (8th ed.) Citation

Catholic Church. Pope (1758-1769 : Clement XIII) and Pope Clement XIII. Brefs De Notre St. Pere Le Pape.

Warning: These citations may not always be 100% accurate.