Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Tax co-operation 2009: Towards a level playing field : 2009 assessment by the Global Forum on transparency and exchange of information. OECD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development و ProQuest (Firm). Tax Co-operation 2009: Towards a Level Playing Field : 2009 Assessment by the Global Forum on Transparency and Exchange of Information. Paris: OECD, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development و ProQuest (Firm). Tax Co-operation 2009: Towards a Level Playing Field : 2009 Assessment by the Global Forum on Transparency and Exchange of Information. OECD, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.