APA (7th ed.) Citation

Opitz, H. (2006). International Music Directory 2006/2007. Saur.

Chicago Style (17th ed.) Citation

Opitz, Helmut. International Music Directory 2006/2007. München: Saur, 2006.

MLA (8th ed.) Citation

Opitz, Helmut. International Music Directory 2006/2007. Saur, 2006.

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