Não informado. Central America: Investing, licensing & trading conditions abroad. Economist Intelligence Unit.
Chicago-referens (17:e uppl.)Não informado. Central America: Investing, Licensing & Trading Conditions Abroad. London: Economist Intelligence Unit.
MLA-referens (8:e uppl.)Não informado. Central America: Investing, Licensing & Trading Conditions Abroad. Economist Intelligence Unit.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.