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Lua i Stíl Chicago (17ú heag.)Zeevaart, Jan Adriaan Dingenis. Flower Formation as Studied by Grafting. Wageningen: H. Veenman, 1958.
Lua MLA (8ú heag.)Zeevaart, Jan Adriaan Dingenis. Flower Formation as Studied by Grafting. H. Veenman, 1958.
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