APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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