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New York, NY [u.a.]: Hafner, 1968
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Baltimore: Williams & Wilkins, 1945
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Princeton, N.J.: Princeton University Press, 1984 ; 1984
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Weimar Bauhaus University: Digital Collectoins, 1976
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Washington, DC, 1946 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Washington, DC, 1947 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Oxford University Press (OUP), 1978
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American Institute of Biological Sciences, 1978
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Sigma Xi Scientific Research Society, 1975
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New York Botanical Garden, 1975
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American Association for the Advancement of Science, 1970
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American Association for the Advancement of Science (AAAS), 1970
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American Association for the Advancement of Science (AAAS), 1970
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New York Botanical Garden, 1968
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Society of the Sigma Xi, 1959
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Informa UK Limited, 1957
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New York Botanical Garden, 1957
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Informa UK Limited, 1957
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New York Botanical Garden, 1957
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American Botanical Society, 1957