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Helsingforsiae, 1971
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Helsinki: Tilgmann, 1965
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Helsinki: Tilgmann, 1968
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Helsinki: Tilgmann, 1964
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JSTOR, 1962
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American Microscopical Society, 1962
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New England Botanical Club, 1956
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JSTOR, 1956
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American Microscopical Society, 1956
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JSTOR, 1965
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American Microscopical Society, 1965
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JSTOR, 1964
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American Microscopical Society, 1964
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JSTOR, 1958
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American Microscopical Society, 1958
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JSTOR, 1957
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American Microscopical Society, 1957
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New England Botanical Club, 1941
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University of Chicago Press, 1949
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Marine Biological Laboratory, 1949