APA (7th ed.) Citation

Agnellus de Ravenna 800-850. (2004). The book of pontiffs of the church of Ravenna (1. ed.). Catholic Univ. of America Press.

Chicago Style (17th ed.) Citation

Agnellus de Ravenna 800-850. The Book of Pontiffs of the Church of Ravenna. 1. ed. Washington, DC: Catholic Univ. of America Press, 2004.

MLA (9th ed.) Citation

Agnellus de Ravenna 800-850. The Book of Pontiffs of the Church of Ravenna. 1. ed. Catholic Univ. of America Press, 2004.