Não informado. (1956). Index to plant chromosome numbers. International Bureau for Plant Taxonomy and Nomenclature.
Chicago-referens (17:e uppl.)Não informado. Index to Plant Chromosome Numbers. Utrecht, Holanda: International Bureau for Plant Taxonomy and Nomenclature, 1956.
MLA-referens (8:e uppl.)Não informado. Index to Plant Chromosome Numbers. International Bureau for Plant Taxonomy and Nomenclature, 1956.
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