Encyclopedia Of Professional Management Editor Lester Robert Bittel Vol. 1 A-l Vol. 2 M-z. Grolier International.
Čikaški stil citiranja (17. izdanje)Encyclopedia Of Professional Management Editor Lester Robert Bittel Vol. 1 A-l Vol. 2 M-z. Grolier International.
MLA način citiranja (8. izdanje)Encyclopedia Of Professional Management Editor Lester Robert Bittel Vol. 1 A-l Vol. 2 M-z. Grolier International.
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