Não informado. (2004). Foreign crops and markets. U.S. Department of Agriculture, Foreign Agricultural Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Foreign Crops and Markets. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 2004.
Lua MLA (8ú heag.)Não informado. Foreign Crops and Markets. U.S. Department of Agriculture, Foreign Agricultural Service, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.