World Bank & Guasch, J. L. (2007). Quality systems and standards for a competitive edge. World Bank.
Cytowanie według stylu Chicago (wyd. 17)World Bank i J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. Washington, D.C.: World Bank, 2007.
Cytowanie według stylu MLA (wyd. 9)World Bank i J. Luis Guasch. Quality Systems and Standards for a Competitive Edge. World Bank, 2007.