Não informado. (1956). Index to plant chromosome numbers. International Bureau for Plant Taxonomy and Nomenclature.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Index to Plant Chromosome Numbers. Utrecht, Holanda: International Bureau for Plant Taxonomy and Nomenclature, 1956.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Index to Plant Chromosome Numbers. International Bureau for Plant Taxonomy and Nomenclature, 1956.
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