APA (7th ed.) Citation

Barton, R., & Dal Vera, R. (2011). Voice: Onstage and off (Second edition.). Routledge.

Chicago Style (17th ed.) Citation

Barton, Robert, and Rocco Dal Vera. Voice: Onstage and off. Second edition. New York, NY ; London: Routledge, 2011.

MLA (9th ed.) Citation

Barton, Robert, and Rocco Dal Vera. Voice: Onstage and off. Second edition. Routledge, 2011.

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