APA (7th ed.) Citation

Beard, D., & Gloag, K. (2005). Musicology: The key concepts. Routledge.

Chicago Style (17th ed.) Citation

Beard, David, and Kenneth Gloag. Musicology: The Key Concepts. London ; New York: Routledge, 2005.

MLA (9th ed.) Citation

Beard, David, and Kenneth Gloag. Musicology: The Key Concepts. Routledge, 2005.