Não informado. (1978). Monographs in Systematic Botany from the Missouri Botanical Garden. Missouri Botanical Garden.
Chicago-viite (17. p.)Não informado. Monographs in Systematic Botany from the Missouri Botanical Garden. Saint Louis, Mo: Missouri Botanical Garden, 1978.
MLA-viite (8. p.)Não informado. Monographs in Systematic Botany from the Missouri Botanical Garden. Missouri Botanical Garden, 1978.
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