Global Forum on Taxation, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2008). Tax co-operation: Towards a level playing field : 2008 assessment by the Global Forum on Taxation. OECD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Global Forum on Taxation, Organisation for Economic Co-operation and Development, و ProQuest (Firm). Tax Co-operation: Towards a Level Playing Field : 2008 Assessment by the Global Forum on Taxation. Paris: OECD, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Global Forum on Taxation, et al. Tax Co-operation: Towards a Level Playing Field : 2008 Assessment by the Global Forum on Taxation. OECD, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.