APA (7th ed.) Citation

Barlow, F. (1955). The feudal kingdom of England, 1042-1216. Longmans, Green.

Chicago Style (17th ed.) Citation

Barlow, Frank. The Feudal Kingdom of England, 1042-1216. London, New York: Longmans, Green, 1955.

MLA (9th ed.) Citation

Barlow, Frank. The Feudal Kingdom of England, 1042-1216. Longmans, Green, 1955.