APA (7th ed.) Citation

Gregor, I., Gregor IX. Papst, Franciscus Moneliensis ca. 15. Jh., Bernardus Bottonius -1266, Herbort, J. 1., & Johann von Köln 14XX-1480. (1481). Co[m]pilatio decretaliu[m] gregorij. ix. Joannes de Colonia. Nicolai Jenson sociorumque.

Chicago Style (17th ed.) Citation

Gregor, IX., Gregor IX. Papst, Franciscus Moneliensis ca. 15. Jh., Bernardus Bottonius -1266, Johann 14XX-1485 Herbort, and Johann von Köln 14XX-1480. Co[m]pilatio Decretaliu[m] Gregorij. Ix. [Venedig]: Joannes de Colonia. Nicolai Jenson sociorumque, 1481.

MLA (9th ed.) Citation

Gregor, IX., et al. Co[m]pilatio Decretaliu[m] Gregorij. Ix. Joannes de Colonia. Nicolai Jenson sociorumque, 1481.

Warning: These citations may not always be 100% accurate.