APA (7th ed.) Citation

Howells, G., Randall, D., & Randall, R. (2002). Tales of king arthur. Armadillo Books.

Chicago Style (17th ed.) Citation

Howells, Graham, Daniel Randall, and Ronne Randall. Tales of King Arthur. Leicester: Armadillo Books, 2002.

MLA (9th ed.) Citation

Howells, Graham, et al. Tales of King Arthur. Armadillo Books, 2002.