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1. Practical Lessons in Leadership
:PETTY, Art - PETRO, Rich. Practical Lessons in Leadership : A Guidebook for Aspiring and Experienced Leaders. Victoria : Trafford Publishing, 2007. 219 s. ISBN 978-1-4251-2249-2. [Počet ex. : 1, z toho voľných 0, prezenčne 1]