APA (7th ed.) Citation

Geoffrey of Monmouth & Thorpe, L. (1966). The history of kings of Britain (12th reprint.). Penguin Books.

Chicago Style (17th ed.) Citation

Geoffrey of Monmouth and Lewis Thorpe. The History of Kings of Britain. 12th reprint. London: Penguin Books, 1966.

MLA (9th ed.) Citation

Geoffrey of Monmouth and Lewis Thorpe. The History of Kings of Britain. 12th reprint. Penguin Books, 1966.

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