International Monetary Fund. Fiscal Affairs Dept. (2018). Costa Rica: Technical Assistance Report-Revenue Administration Gap Analysis Program-Tax Gap Analysis for General Sales and Corporate Income Tax. International Monetary Fund.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Monetary Fund. Fiscal Affairs Dept. Costa Rica: Technical Assistance Report-Revenue Administration Gap Analysis Program-Tax Gap Analysis for General Sales and Corporate Income Tax. Washington, D.C.: International Monetary Fund, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Monetary Fund. Fiscal Affairs Dept. Costa Rica: Technical Assistance Report-Revenue Administration Gap Analysis Program-Tax Gap Analysis for General Sales and Corporate Income Tax. International Monetary Fund, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.