APA (7th ed.) Citation

Holden, A., Kenyon, N., & Walsh, S. (1993). The Viking opera guide. Viking.

Chicago Style (17th ed.) Citation

Holden, Amanda, Nicholas Kenyon, and Stephen Walsh. The Viking Opera Guide. London ; New York: Viking, 1993.

MLA (9th ed.) Citation

Holden, Amanda, et al. The Viking Opera Guide. Viking, 1993.