World Bank & Guasch, J. L. (2007). Quality systems and standards for a competitive edge. World Bank.
Chicago-viite (17. p.)World Bank ja J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. Washington, D.C.: World Bank, 2007.
MLA-viite (9. p.)World Bank ja J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. World Bank, 2007.