APA (7th ed.) Citation

Gregor, I., & Gregor I. Papst 542-604. (1690). Vita s. p. n. Benedicti abbatis.

Chicago Style (17th ed.) Citation

Gregor, I., and Gregor I. Papst 542-604. Vita S. P. N. Benedicti Abbatis. [S.l.], 1690.

MLA (9th ed.) Citation

Gregor, I., and Gregor I. Papst 542-604. Vita S. P. N. Benedicti Abbatis. 1690.

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