APA (7th ed.) Citation

Kreuzer, G. (1991). Honorius I., Papst (625-638).

Chicago Style (17th ed.) Citation

Kreuzer, Georg. Honorius I., Papst (625-638). 1991.

MLA (9th ed.) Citation

Kreuzer, Georg. Honorius I., Papst (625-638). 1991.

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