APA (7th ed.) Citation

Colton, R. H., & Casper, J. K. (1990). Understanding voice problems: A physiological perspective for diagnosis and treatment. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Colton, Raymond H., and Janina K. Casper. Understanding Voice Problems: A Physiological Perspective for Diagnosis and Treatment. Baltimore u.a: Williams & Wilkins, 1990.

MLA (9th ed.) Citation

Colton, Raymond H., and Janina K. Casper. Understanding Voice Problems: A Physiological Perspective for Diagnosis and Treatment. Williams & Wilkins, 1990.