APA (7th ed.) Citation

Crompton, R., & Henry, T. (1936). William--the Conqueror. G. Newnes.

Chicago Style (17th ed.) Citation

Crompton, Richmal, and Thomas Henry. William--the Conqueror. London: G. Newnes, 1936.

MLA (9th ed.) Citation

Crompton, Richmal, and Thomas Henry. William--the Conqueror. G. Newnes, 1936.