APA (7th ed.) Citation

Davis, R. H. (1957). A history of medieval Europe, from Constantine to Saint Louis. Longmans, Green.

Chicago Style (17th ed.) Citation

Davis, Ralph H.C. A History of Medieval Europe, from Constantine to Saint Louis. London: Longmans, Green, 1957.

MLA (9th ed.) Citation

Davis, Ralph H.C. A History of Medieval Europe, from Constantine to Saint Louis. Longmans, Green, 1957.