APA (7th ed.) Citation

Warner, P. (1972). The medieval castle: Life in a fortress in peace and war. Barker.

Chicago Style (17th ed.) Citation

Warner, Philip. The Medieval Castle: Life in a Fortress in Peace and War. London: Barker, 1972.

MLA (9th ed.) Citation

Warner, Philip. The Medieval Castle: Life in a Fortress in Peace and War. Barker, 1972.

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