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München [u.a.]: BLV, 1967
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University of Chicago Press, 1966
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The Business Press, Inc., 1966
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Stony Brook Foundation, Inc., 1966
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University of Chicago Press, 1964
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Wiley, 1963
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Wiley, 1963
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American Botanical Society, 1963
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Birbal Sahni Institute of Palaeosciences, 1965
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American Institute of Biological Sciences, 1964
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Society of Economic Paleontologists and Mineralogists and the Paleontological Society, 1964
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University of Chicago Press, 1962
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University of Chicago Press, 1961
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University of Chicago Press, 1961
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University of Chicago Press, 1961
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University of Chicago Press, 1962
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Wiley, 1959
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Wiley, 1959
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American Botanical Society, 1959
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Wiley, 1960