HUGHES RICHARD. (2011). LEADERSHIP ENHANCING THE LESSONS OF EXPERIENCE (6TH.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Chicago-viite (17. p.)HUGHES RICHARD. LEADERSHIP ENHANCING THE LESSONS OF EXPERIENCE. 6TH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2011.
MLA-viite (9. p.)HUGHES RICHARD. LEADERSHIP ENHANCING THE LESSONS OF EXPERIENCE. 6TH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2011.
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