APA (7th ed.) Citation

Davis, R. H. C. (1964). A history of medieval Europe: From Constantine to Saint Louis (8th impression by photo lithography.). Longmans.

Chicago Style (17th ed.) Citation

Davis, R. H. C. A History of Medieval Europe: From Constantine to Saint Louis. 8th impression by photo lithography. Longmans, 1964.

MLA (9th ed.) Citation

Davis, R. H. C. A History of Medieval Europe: From Constantine to Saint Louis. 8th impression by photo lithography. Longmans, 1964.

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