Cita APA

Cooper, M. 1., & Cooper, M. 1. (1985). Change your voice change your life: A quick, simple plan for finding and using your natural, dynamic voice. New York, New York: Barnes & Noble Books.

Citación estilo Chicago

Cooper, Morton 1931-, y Morton 1931- Cooper. Change Your Voice Change Your Life: A Quick, Simple Plan for Finding and Using Your Natural, Dynamic Voice. New York, New York: Barnes & Noble Books, 1985.

Cita MLA

Cooper, Morton 1931-, y Morton 1931- Cooper. Change Your Voice Change Your Life: A Quick, Simple Plan for Finding and Using Your Natural, Dynamic Voice. New York, New York: Barnes & Noble Books, 1985.