APA ציטוט

Ravenna, A. d., & Nauerth, C. Liber pontificalis. Fontes Christiani 21.

Chicago Style Citation

Ravenna, Agnellus de, and Claudia Nauerth. "Liber Pontificalis." Fontes Christiani 21 .

ציטוט MLA

Ravenna, Agnellus de, and Claudia Nauerth. "Liber Pontificalis." Fontes Christiani 21 .