APA (7th ed.) Citation

Gillingham, J. (1980). Richard I and Berengaria of Navarre.

Chicago Style (17th ed.) Citation

Gillingham, John. Richard I and Berengaria of Navarre. 1980.

MLA (9th ed.) Citation

Gillingham, John. Richard I and Berengaria of Navarre. 1980.

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