APA (7th ed.) Citation

Wright, R., Mansfield, C., & Panfili, L. Voice quality types and uses in North American English. Presses Universitaires du Midi.

Chicago Style (17th ed.) Citation

Wright, Richard, Courtney Mansfield, and Laura Panfili. Voice Quality Types and Uses in North American English. Presses Universitaires du Midi.

MLA (9th ed.) Citation

Wright, Richard, et al. Voice Quality Types and Uses in North American English. Presses Universitaires du Midi.