Ripka, Z. (2010). ISTA handbook on flower seed testing (1a. ed.). ISTA.
Chicago Style (17th ed.) CitationRipka, Zita. ISTA Handbook on Flower Seed Testing. 1a. ed. Zurich: ISTA, 2010.
MLA (9th ed.) CitationRipka, Zita. ISTA Handbook on Flower Seed Testing. 1a. ed. ISTA, 2010.
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