Kirkpatrick, D. L. (1982). How to improve performance through appraisal and coaching.
Παραπομπή Chicago StyleKirkpatrick, Donald L. How to Improve Performance Through Appraisal and Coaching. AMACOM, New York, 1982.
Παραπομπή MLAKirkpatrick, Donald L. How to Improve Performance Through Appraisal and Coaching. 1982.
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