APA (7th ed.) Citation

Johnston, G. (2013). Chivalry and betrayal: 1337-1360. BBC Worldwide.

Chicago Style (17th ed.) Citation

Johnston, Graham. Chivalry and Betrayal: 1337-1360. London, England: BBC Worldwide, 2013.

MLA (9th ed.) Citation

Johnston, Graham. Chivalry and Betrayal: 1337-1360. BBC Worldwide, 2013.

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