Não informado. Quarterly Statistical Bulletin on Coffee. International Coffee Organization.
Lua i Stíl Chicago (17ú heag.)Não informado. Quarterly Statistical Bulletin on Coffee. London: International Coffee Organization.
Lua MLA (8ú heag.)Não informado. Quarterly Statistical Bulletin on Coffee. International Coffee Organization.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.