Cita APA (7a ed.)

Titze, I. R., & Verdolini Abbott, K. (2012). Vocology: The science and practice of voice habilitation. National Center for Voice and Speech.

Cita Chicago Style (17a ed.)

Titze, Ingo R., y Katherine Verdolini Abbott. Vocology: The Science and Practice of Voice Habilitation. Salt Lake City: National Center for Voice and Speech, 2012.

Cita MLA (9a ed.)

Titze, Ingo R., y Katherine Verdolini Abbott. Vocology: The Science and Practice of Voice Habilitation. National Center for Voice and Speech, 2012.