APA (7th ed.) Citation

Birtwistle, H. (1999). --agm--: Music for sixteen voices and three instrumental groups. Universal Edition.

Chicago Style (17th ed.) Citation

Birtwistle, Harrison. --agm--: Music for Sixteen Voices and Three Instrumental Groups. London: Universal Edition, 1999.

MLA (9th ed.) Citation

Birtwistle, Harrison. --agm--: Music for Sixteen Voices and Three Instrumental Groups. Universal Edition, 1999.

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