Não informado. (2001). World catalogue of genetic stocks. FAO, Plant Industry Branch.
Lua i Stíl Chicago (17ú heag.)Não informado. World Catalogue of Genetic Stocks. Washington: FAO, Plant Industry Branch, 2001.
Lua MLA (8ú heag.)Não informado. World Catalogue of Genetic Stocks. FAO, Plant Industry Branch, 2001.
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