APA (7th ed.) Citation

Pickering, D. (1997). Cassell companion to 20th century music (Rev. and updated ed.). Cassell.

Chicago Style (17th ed.) Citation

Pickering, David. Cassell Companion to 20th Century Music. Rev. and updated ed. London: Cassell, 1997.

MLA (9th ed.) Citation

Pickering, David. Cassell Companion to 20th Century Music. Rev. and updated ed. Cassell, 1997.