Heller,Robert. (2008). Managing teams ;Motivating people ;How to delegate. Dorling Kindersley.
Čikaški stil citiranja (17. izdanje)Heller,Robert. Managing Teams ;Motivating People ;How to Delegate. London: Dorling Kindersley, 2008.
MLA način citiranja (8. izdanje)Heller,Robert. Managing Teams ;Motivating People ;How to Delegate. Dorling Kindersley, 2008.
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