Basic Influencing Skills, 1, Basic Influencing Skills, 4th Edition
written by S. Kent Butler, Norma Gluckstern Packard, fl. 2000, Mary Bradford Ivey, fl. 1982, Allen E. Ivey, fl. 1980 and Carlos Zalaquett; presented by S. Kent Butler, Norma Gluckstern Packard, fl. 2000, Mary Bradford Ivey, fl. 1982, Allen E. Ivey, fl. 1980 and Carlos Zalaquett, in Basic Influencing Skills, 1 (Alexandria, VA: Microtraining Associates, 2011), 1 hour 40 mins