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New York, N. Y.: Penguin books, 1984
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Moscow: Progress Publ., 1980
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New York: Pocket Books, 1970
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Harmondsworth [u.a.]: Penguin Books, 1969
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[New York]: Pocket Books, 1947
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Philadelphia, 1944
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New York, NY: Random House, [circa 1940]
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Leipzig: Tauchnitz, 1940
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London [u.a.]: Heinemann, 1936
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London: Heinemann, 1935-1980
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Leipzig: Tauchnitz, 1928