Cita APA (7th ed.)

Whitman, A., & Demarest, K. K. (2000). Communication works! Prentice Hall.

Cita Chicago (17th ed.)

Whitman, Alex, i Kathy K. Demarest. Communication Works! Upper Saddle River, N.J: Prentice Hall, 2000.

Cita MLA (9th ed.)

Whitman, Alex, i Kathy K. Demarest. Communication Works! Prentice Hall, 2000.