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Citace podle Chicago (17th ed.)ISHS International Asparagus Symposium Ferrara (Italy), International Society for Horticultural Science. Working Group Asparagus, Eucarpia, Research Institute for Vegetable Crops (Milan (Italy)), la sperimentazione e la divulgazione in ortoflorofrutticoltura e sementi ERSO. Ente per la ricerca, Centro operativo ortofrutticolo di Ferrara, A. Falavigna, a Massimo Schiavi. 7th International Asparagus Symposium: Ferrara, Italy, June 19-23, 1989. Wageningen, Netherlands: Secretary-General of ISHS, 1990.
Citace podle MLA (8th ed.)ISHS International Asparagus Symposium Ferrara (Italy), et al. 7th International Asparagus Symposium: Ferrara, Italy, June 19-23, 1989. Secretary-General of ISHS, 1990.