Citazione Stile APA (7a Edizione)

Behrman, A., & Haskell, J. (2013). Exercise of voice therapy (2nd ed.). Plural Publishing.

Citazione stile Chigago Style (17a edizione)

Behrman, Alison, e John Haskell. Exercise of Voice Therapy. 2nd ed. San Diego, CA: Plural Publishing, 2013.

Citatione MLA (9a ed.)

Behrman, Alison, e John Haskell. Exercise of Voice Therapy. 2nd ed. Plural Publishing, 2013.