APA (7th ed.) Citation

Gillingham, J. (1978). Richard the Lionheart. Times Books.

Chicago Style (17th ed.) Citation

Gillingham, John. Richard the Lionheart. New York: Times Books, 1978.

MLA (9th ed.) Citation

Gillingham, John. Richard the Lionheart. Times Books, 1978.

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