APA (7th ed.) Citation

Phillips, W., & Cogan, B. (2009). Encyclopedia of heavy metal music. Greenwood.

Chicago Style (17th ed.) Citation

Phillips, William, and Brian Cogan. Encyclopedia of Heavy Metal Music. Westport, Conn. ; London: Greenwood, 2009.

MLA (8th ed.) Citation

Phillips, William, and Brian Cogan. Encyclopedia of Heavy Metal Music. Greenwood, 2009.

Warning: These citations may not always be 100% accurate.