ZENGER JOHN H. (2002). EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO GREAT LEADERS. MCGRAW-HILL.
Čikaški stil citiranja (17. izdanje)ZENGER JOHN H. EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO GREAT LEADERS. NEW YORK: MCGRAW-HILL, 2002.
MLA način citiranja (9. izdanje)ZENGER JOHN H. EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO GREAT LEADERS. MCGRAW-HILL, 2002.
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