APA (7th ed.) Citation

Gregory I, P., & Zell, U. (1473). Incipit cōmentū btī Gregorij pape su̲p Cātica canticorum Prologus. Ulrich Zell.

Chicago Style (17th ed.) Citation

Gregory I, Pope, and Ulrich Zell. Incipit Cōmentū Btī Gregorij Pape Su̲p Cātica Canticorum Prologus. [Cologne: Ulrich Zell, 1473.

MLA (8th ed.) Citation

Gregory I, Pope, and Ulrich Zell. Incipit Cōmentū Btī Gregorij Pape Su̲p Cātica Canticorum Prologus. Ulrich Zell, 1473.