Boning, B., Ichniowski, C., & Shaw, K. (2001). Opportunity counts: Teams and the effectiveness of production incentives. National Bureau of Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Boning, Brent, Casey Ichniowski, و Kathryn Shaw. Opportunity Counts: Teams and the Effectiveness of Production Incentives. Cambridge: National Bureau of Economic Research, 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Boning, Brent, et al. Opportunity Counts: Teams and the Effectiveness of Production Incentives. National Bureau of Economic Research, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.