Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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