Boone, D. R. a. O. (2010). The Voice And Voice Therapy (Eighth.). Allyn and Bacon.
Chicago ZitierstilBoone, Daniel R. and Others. The Voice And Voice Therapy. Eighth. Boston: Allyn and Bacon, 2010.
MLA ZitierstilBoone, Daniel R. and Others. The Voice And Voice Therapy. Eighth. Allyn and Bacon, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.