APA (7th ed.) Citation

Chaplin, C., Youngson, R., Keaton, B., Laurel, S., & Hardy, O. (2010). When comedy was king: Meet the silent clowns who had the whole world laughing. Cornerstone Media International.

Chicago Style (17th ed.) Citation

Chaplin, Charlie, Robert Youngson, Buster Keaton, Stan Laurel, and Oliver Hardy. When Comedy Was King: Meet the Silent Clowns Who Had the Whole World Laughing. [S.l.]: Cornerstone Media International, 2010.

MLA (9th ed.) Citation

Chaplin, Charlie, et al. When Comedy Was King: Meet the Silent Clowns Who Had the Whole World Laughing. Cornerstone Media International, 2010.