توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Organisation for Economic Co-operation and Development. (2018). OECD statistics on international trade in services. OECD Publishing.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services. Paris: OECD Publishing, 2018.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Organisation for Economic Co-operation and Development. OECD Statistics on International Trade in Services. OECD Publishing, 2018.