APA (7th ed.) Citation

Wallin, R. (2004). Act: For large orchestra (Score, Version 2.). Chester Music.

Chicago Style (17th ed.) Citation

Wallin, Rolf. Act: For Large Orchestra. Score, Version 2. London: Chester Music, 2004.

MLA (9th ed.) Citation

Wallin, Rolf. Act: For Large Orchestra. Score, Version 2. Chester Music, 2004.