World Bank & Guasch, J. L. (2007). Quality systems and standards for a competitive edge. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Bank و J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. Washington, D.C.: World Bank, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)World Bank و J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. World Bank, 2007.