KRAMES JEFFEREY A. (2002). JACK WELCH LEXION OF LEADERSHIP. MCGRAW-HILL.
Chicago-čujuhus (17. p.)KRAMES JEFFEREY A. JACK WELCH LEXION OF LEADERSHIP. NEW YORK: MCGRAW-HILL, 2002.
MLA-čujuhus (9. p.)KRAMES JEFFEREY A. JACK WELCH LEXION OF LEADERSHIP. MCGRAW-HILL, 2002.
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