Cita APA (7th ed.)

(2004). Face-to-face communications for clarity and impact (1a. ed.). Harvard Business School.

Cita Chicago (17th ed.)

Face-to-face Communications for Clarity and Impact. 1a. ed. Boston: Harvard Business School, 2004.

Cita MLA (9th ed.)

Face-to-face Communications for Clarity and Impact. 1a. ed. Harvard Business School, 2004.