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Jena: Fischer, 1964
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New York. NY: Macmillan, 1955
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Waltham, Mass.: Chronica Botanica Co., 1948
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New York, NY: Ronald Press, 1958
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Petersham, Mass., 1947
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New York: Macmillan, 1937
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Springer Science and Business Media LLC, 1992
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Oxford University Press (OUP), 1992
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International Working Group on Flowering, 1993
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American Institute of Biological Sciences, 1992
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International Working Group on Flowering, 1991
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Oxford University Press (OUP), 1986
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Oxford University Press (OUP), 1987
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American Institute of Biological Sciences, 1987
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American Institute of Biological Sciences, 1986
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American Society of Plant Physiologists, 1985
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Oxford University Press (OUP), 1983
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American Institute of Biological Sciences, 1983
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Oxford University Press (OUP), 1985
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American Society of Plant Physiologists, 1985