Pace Joe Dr. (2006). Professional Development Series Book 2 The Workplace: Interpersonal Strengths and Leadership (In lần thứ 1.). U.S.A: McGraw -Hill.
Chicago-stil citatPace Joe Dr. Professional Development Series Book 2 The Workplace: Interpersonal Strengths and Leadership. In lần thứ 1. U.S.A: McGraw -Hill, 2006.
MLA-referensPace Joe Dr. Professional Development Series Book 2 The Workplace: Interpersonal Strengths and Leadership. In lần thứ 1. U.S.A: McGraw -Hill, 2006.
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