APA (7th ed.) Citation

Gibson, S., Jemmings, W., & Warnock, J. (1992). American country music. Multisonic.

Chicago Style (17th ed.) Citation

Gibson, Steve, Wally Jemmings, and James Warnock. American Country Music. Praha: Multisonic, 1992.

MLA (9th ed.) Citation

Gibson, Steve, et al. American Country Music. Multisonic, 1992.