Carnegie, D. The leader in you how to win friends, influence people, and succeed in a changing world. Pocket Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carnegie, Dale. The Leader in You How to Win Friends, Influence People, and Succeed in a Changing World. Pocket Books.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Carnegie, Dale. The Leader in You How to Win Friends, Influence People, and Succeed in a Changing World. Pocket Books.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.