Organisation for Economic Co-operation and Development. (1979). OECD economic surveys: Spain. Organisation for Economic Co-Operation and Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development. OECD Economic Surveys: Spain. Paris, France: Organisation for Economic Co-Operation and Development, 1979.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development. OECD Economic Surveys: Spain. Organisation for Economic Co-Operation and Development, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.