APA (7th ed.) Citation

Seymour, M. C., & Geary, P. J. (1994). Authors of the Middle Ages. Variorum.

Chicago Style (17th ed.) Citation

Seymour, Michael Charles, and Patrick J. Geary. Authors of the Middle Ages. Aldershot [u.a.]: Variorum, 1994.

MLA (8th ed.) Citation

Seymour, Michael Charles, and Patrick J. Geary. Authors of the Middle Ages. Variorum, 1994.