Não informado. (1974). Coffee international. International Trade Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Coffee International. London: International Trade Publications, 1974.
Lua MLA (8ú heag.)Não informado. Coffee International. International Trade Publications, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.