APA-referens (7:e uppl.)
Amaral, L. C. (2023). A medieval “enigma”: About the ecclesiastical trajectory of the Archbishop of Braga and “Antipope” Gregory VIII, Maurice “Bourdin” (11th-12th centuries).
Chicago-referens (17:e uppl.)
Amaral, Luís Carlos. A Medieval “enigma”: About the Ecclesiastical Trajectory of the Archbishop of Braga and “Antipope” Gregory VIII, Maurice “Bourdin” (11th-12th Centuries). 2023.
MLA-referens (9:e uppl.)
Amaral, Luís Carlos. A Medieval “enigma”: About the Ecclesiastical Trajectory of the Archbishop of Braga and “Antipope” Gregory VIII, Maurice “Bourdin” (11th-12th Centuries). 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.