Byham, W. C. (1988). Zapp!: The lightning of empowerment : how to improve productivity, quality, and employee satisfaction. New York: Ballantine Pub. Group.
Παραπομπή Chicago StyleByham, William C. Zapp!: The Lightning of Empowerment : How to Improve Productivity, Quality, and Employee Satisfaction. New York: Ballantine Pub. Group, 1988.
Παραπομπή MLAByham, William C. Zapp!: The Lightning of Empowerment : How to Improve Productivity, Quality, and Employee Satisfaction. New York: Ballantine Pub. Group, 1988.
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