APA (7th ed.) Citation

Winston, R. (1954). Charlemagne: From the hammer to the cross. Bobbs-Merrill.

Chicago Style (17th ed.) Citation

Winston, Richard. Charlemagne: From the Hammer to the Cross. Indianapolis [etc.]: Bobbs-Merrill, 1954.

MLA (9th ed.) Citation

Winston, Richard. Charlemagne: From the Hammer to the Cross. Bobbs-Merrill, 1954.

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