Cita APA (7a ed.)

Agnellus <de Ravenna> & Nauerth, C. (1996). [Liber pontificalis, 2]. Herder.

Cita Chicago Style (17a ed.)

Agnellus <de Ravenna> y Claudia Nauerth. [Liber Pontificalis, 2]. Freiburg [u.a.]: Herder, 1996.

Cita MLA (8a ed.)

Agnellus <de Ravenna> y Claudia Nauerth. [Liber Pontificalis, 2]. Herder, 1996.