APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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