WITZEL MORGEN. (2003). FIFTY KEY FIGURES IN MANAGEMENT. ROUTLEDGE & KOGAN PRESS.
Chicago-čujuhus (17. p.)WITZEL MORGEN. FIFTY KEY FIGURES IN MANAGEMENT. LONDON: ROUTLEDGE & KOGAN PRESS, 2003.
MLA-čujuhus (9. p.)WITZEL MORGEN. FIFTY KEY FIGURES IN MANAGEMENT. ROUTLEDGE & KOGAN PRESS, 2003.
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