APA (7th ed.) Citation

Wilhelm, S. Voice Quality in British English. Its Nature, Functions and Applications. Presses Universitaires du Midi.

Chicago Style (17th ed.) Citation

Wilhelm, Stephan. Voice Quality in British English. Its Nature, Functions and Applications. Presses Universitaires du Midi.

MLA (9th ed.) Citation

Wilhelm, Stephan. Voice Quality in British English. Its Nature, Functions and Applications. Presses Universitaires du Midi.

Warning: These citations may not always be 100% accurate.