Hay, E. N. (1971). The best of men and management: A collection of essays on the serious concerns facing manament. Edward N. Hay and Associates.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hay, Edward N. The Best of Men and Management: A Collection of Essays on the Serious Concerns Facing Manament. Edward N. Hay and Associates, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hay, Edward N. The Best of Men and Management: A Collection of Essays on the Serious Concerns Facing Manament. Edward N. Hay and Associates, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.