APA (7th ed.) Citation

Gilbert. (1978). Knights of the crusades. Macdonald Education.

Chicago Style (17th ed.) Citation

Gilbert. Knights of the Crusades. London: Macdonald Education, 1978.

MLA (8th ed.) Citation

Gilbert. Knights of the Crusades. Macdonald Education, 1978.

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