Cita APA

John, E., Hall, L., & Huff, M. (2009). Billy Ellot Musicals. Hal Leonard.

Citación estilo Chicago

John, Elton, Lee Hall, and Mac Huff. Billy Ellot Musicals. Hal Leonard, 2009.

Cita MLA

John, Elton, et al. Billy Ellot Musicals. Hal Leonard, 2009.