Organisation for Economic Co-operation and Development & ProQuest (Firm). (2013). Global Forum on Transparency and Exchange of Information for Tax Purposes peer reviews: Portugal 2013. Phase 1. OECD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development و ProQuest (Firm). Global Forum on Transparency and Exchange of Information for Tax Purposes Peer Reviews: Portugal 2013. Phase 1. [Paris]: OECD, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development و ProQuest (Firm). Global Forum on Transparency and Exchange of Information for Tax Purposes Peer Reviews: Portugal 2013. Phase 1. OECD, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.