Greenberg, H. How to hire and develop your next top performer. McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Greenberg, Herb. How to Hire and Develop Your Next Top Performer. McGraw-Hill.
MLA način citiranja (8. izdanje)Greenberg, Herb. How to Hire and Develop Your Next Top Performer. McGraw-Hill.
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