Organisation for Economic Co-operation and Development, Local Economic and Employment Development (Program), & ProQuest (Firm). (2006). Skills upgrading: New policy perspectives. OECD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development, Local Economic and Employment Development (Program), و ProQuest (Firm). Skills Upgrading: New Policy Perspectives. Paris: OECD, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development, et al. Skills Upgrading: New Policy Perspectives. OECD, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.