APA (7th ed.) Citation

Chris Harrison. (2007). Opus 2: Progression in music 11-14 (1st.). Heinemann.

Chicago Style (17th ed.) Citation

Chris Harrison. Opus 2: Progression in Music 11-14. 1st. Heinemann, 2007.

MLA (9th ed.) Citation

Chris Harrison. Opus 2: Progression in Music 11-14. 1st. Heinemann, 2007.

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