Não informado. Quarterly Statistical Bulletin on Coffee. International Coffee Organization.
Chicago-referens (17:e uppl.)Não informado. Quarterly Statistical Bulletin on Coffee. London: International Coffee Organization.
MLA-referens (8:e uppl.)Não informado. Quarterly Statistical Bulletin on Coffee. International Coffee Organization.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.