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Washington, DC: Smithsonian Institution, 1962 [erschienen 1968]
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Washington: Smithsonian Institution, 1939
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Washington, DC: Smithsonian Institution, 19XX-
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Biodiversity Heritage Library, 1985
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Smithsonian Institution, 1977
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Smithsonian Institution, 1977
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New England Botanical Club, 1971
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Biodiversity Heritage Library, 1970
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Biodiversity Heritage Library, 1970
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Biodiversity Heritage Library, 1964
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Smithsonian Institution, 1962
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American Association for the Advancement of Science, 1956
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New York Botanical Garden, 1954
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Springer Science and Business Media LLC, 1954
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American Association for the Advancement of Science (AAAS), 1945
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The Science Press, 1945
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Smithsonian Institution, 1940
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Cambridge University Press (CUP), 1938
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JSTOR, 1938
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Oxford University Press (OUP), 1961