Cita APA (7th ed.)

International Training Corporation. (1993). Effective presentation skills. Pfeiffer & Company.

Cita Chicago (17th ed.)

International Training Corporation. Effective Presentation Skills. Amsterdam: Pfeiffer & Company, 1993.

Cita MLA (9th ed.)

International Training Corporation. Effective Presentation Skills. Pfeiffer & Company, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.