Gandy, D. B., & Lowe, J. (2001). 30 days to a happy employee: How a simple program of acknowledgment can build trust and loyalty at work. Fireside.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gandy, Dottie Bruce, و Jack Lowe. 30 Days to a Happy Employee: How a Simple Program of Acknowledgment Can Build Trust and Loyalty at Work. New YorK: Fireside, 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Gandy, Dottie Bruce, و Jack Lowe. 30 Days to a Happy Employee: How a Simple Program of Acknowledgment Can Build Trust and Loyalty at Work. Fireside, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.