United States Agency for International Development. (1992). Barriers to entry study: Final report. SGV Consulting.
Chicago-referens (17:e uppl.)United States Agency for International Development. Barriers to Entry Study: Final Report. Manila: SGV Consulting, 1992.
MLA-referens (9:e uppl.)United States Agency for International Development. Barriers to Entry Study: Final Report. SGV Consulting, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.