Cita APA (7th ed.)

Carey, D., & Carey, R. C. (2008). Vocal arts workbook and DVD: A practical course for achieving clarity and expression with your voice. Methuen Drama.

Cita Chicago (17th ed.)

Carey, David, i Rebecca Clark Carey. Vocal Arts Workbook and DVD: A Practical Course for Achieving Clarity and Expression with Your Voice. London: Methuen Drama, 2008.

Cita MLA (9th ed.)

Carey, David, i Rebecca Clark Carey. Vocal Arts Workbook and DVD: A Practical Course for Achieving Clarity and Expression with Your Voice. Methuen Drama, 2008.