SAYLES, L. R. (1979). Leadership: What effective managers really do and ... how they do it. Mc Graw-Hill Book Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)SAYLES, Leonard R. Leadership: What Effective Managers Really Do and ... How They Do It. New York: Mc Graw-Hill Book Company, 1979.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)SAYLES, Leonard R. Leadership: What Effective Managers Really Do and ... How They Do It. Mc Graw-Hill Book Company, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.