Cita APA

Richards, J. 1. (1980). Consul of God: The life and times of Gregory the Great. London [etc.]: Routledge & Kegan Paul.

Citación estilo Chicago

Richards, Jeffrey 1945-. Consul of God: The Life and Times of Gregory the Great. London [etc.]: Routledge & Kegan Paul, 1980.

Cita MLA

Richards, Jeffrey 1945-. Consul of God: The Life and Times of Gregory the Great. London [etc.]: Routledge & Kegan Paul, 1980.