Sirota, D., Mischkind, L. A., & Meltzer, M. I. (2005). The enthusiastic employee: How companies profit by giving workers what they want. Wharton School Pub.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sirota, David, Louis A. Mischkind, و Michael Irwin Meltzer. The Enthusiastic Employee: How Companies Profit by Giving Workers What They Want. Upper Saddle River, N.J: Wharton School Pub, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sirota, David, et al. The Enthusiastic Employee: How Companies Profit by Giving Workers What They Want. Wharton School Pub, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.