APA (7th ed.) Zitazioa
Tracy, B. Leadership the critical difference. Nightingale-Conant Corporation.
Chicago Style (17th ed.) Zitazioa
Tracy, Brian. Leadership the Critical Difference. Chicago: Nightingale-Conant Corporation.
MLA (9th ed.) Zitazioa
Tracy, Brian. Leadership the Critical Difference. Nightingale-Conant Corporation.
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