APA (7th ed.) Citation

Cooper, M. (1986). Change your voice, change your life: A quick, simple plan for finding and using your natural, dynamic voice. Perennial Library.

Chicago Style (17th ed.) Citation

Cooper, Morton. Change Your Voice, Change Your Life: A Quick, Simple Plan for Finding and Using Your Natural, Dynamic Voice. New York: Perennial Library, 1986.

MLA (9th ed.) Citation

Cooper, Morton. Change Your Voice, Change Your Life: A Quick, Simple Plan for Finding and Using Your Natural, Dynamic Voice. Perennial Library, 1986.