APA (7th ed.) Citation

Bullough, D. (1965). The age of Charlemagne / by Donald Bullough. Elek.

Chicago Style (17th ed.) Citation

Bullough, Donald. The Age of Charlemagne / by Donald Bullough. London: Elek, 1965.

MLA (9th ed.) Citation

Bullough, Donald. The Age of Charlemagne / by Donald Bullough. Elek, 1965.

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