(2004). Labor Issues in infrastructure reforma toolkitPublic-Private Infrastructure Advisory Facility (PPIAF). The World Bank.
Chicago-referens (17:e uppl.)Labor Issues in Infrastructure Reforma ToolkitPublic-Private Infrastructure Advisory Facility (PPIAF). The World Bank, 2004.
MLA-referens (8:e uppl.)Labor Issues in Infrastructure Reforma ToolkitPublic-Private Infrastructure Advisory Facility (PPIAF). The World Bank, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.