APA (7th ed.) Citation

Gregor, I., & Norberg, D. (1982). S. Gregorii Magni opera: S. Gregorii Magni registrvm epistvlarvm libri I - VII. Brepols.

Chicago Style (17th ed.) Citation

Gregor, I., and Dag Norberg. S. Gregorii Magni Opera: S. Gregorii Magni Registrvm Epistvlarvm Libri I - VII. Turnholti: Brepols, 1982.

MLA (9th ed.) Citation

Gregor, I., and Dag Norberg. S. Gregorii Magni Opera: S. Gregorii Magni Registrvm Epistvlarvm Libri I - VII. Brepols, 1982.

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