Cotton, M., & Dark, G. (2017). Use of Technology in Tax Administrations 3: Implementing a Commercial-Off-The-Shelf (COTS) Tax System. International Monetary Fund.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cotton, Margaret, و Gregory Dark. Use of Technology in Tax Administrations 3: Implementing a Commercial-Off-The-Shelf (COTS) Tax System. Washington, D.C.: International Monetary Fund, 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cotton, Margaret, و Gregory Dark. Use of Technology in Tax Administrations 3: Implementing a Commercial-Off-The-Shelf (COTS) Tax System. International Monetary Fund, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.