APA (7th ed.) Citation

Willoughby, D. (2007). The world of music (6th ed.).

Chicago Style (17th ed.) Citation

Willoughby, David. The World of Music. 6th ed. New York, N.Y. ; McGraw-Hill, 2007.

MLA (9th ed.) Citation

Willoughby, David. The World of Music. 6th ed. 2007.