King, R. M., & Robinson, H. E. (1977). Studies in the Eupatorieae (Asteraceae).CLXIV. Various notes and additions. Zenodo.
Citace podle Chicago (17th ed.)King, Robert Merrill, a Harold Ernest Robinson. Studies in the Eupatorieae (Asteraceae).CLXIV. Various Notes and Additions. Zenodo, 1977.
Citace podle MLA (9th ed.)King, Robert Merrill, a Harold Ernest Robinson. Studies in the Eupatorieae (Asteraceae).CLXIV. Various Notes and Additions. Zenodo, 1977.
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