Cita APA (7a ed.)

Stuart, C. (1989). How to be an effective speaker. NTC Business Books.

Cita Chicago Style (17a ed.)

Stuart, Cristina. How to Be an Effective Speaker. Lincolnwood, Ill: NTC Business Books, 1989.

Cita MLA (9a ed.)

Stuart, Cristina. How to Be an Effective Speaker. NTC Business Books, 1989.