HUGHES RICHARD L. (2014). LEADERSHIP (7TH ED.). MCGRAW HILL EDUCATION.
Chicagoスタイル(17版)引用形式HUGHES RICHARD L. LEADERSHIP. 7TH ED. NEW DELHI: MCGRAW HILL EDUCATION, 2014.
MLA(9版)引用形式HUGHES RICHARD L. LEADERSHIP. 7TH ED. MCGRAW HILL EDUCATION, 2014.
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