Colton, R. H., Casper, J. K., & Leonard, R. (2011). Understanding voice problems: A physiological perspective for diagnosis and treatment (4th ed.). Wolters Kluwer Health/Lippincott Williams & Wilkins.
Chicago-viite (17. p.)Colton, Raymond H., Janina K. Casper, ja Rebecca Leonard. Understanding Voice Problems: A Physiological Perspective for Diagnosis and Treatment. 4th ed. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
MLA-viite (9. p.)Colton, Raymond H., et al. Understanding Voice Problems: A Physiological Perspective for Diagnosis and Treatment. 4th ed. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
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