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New York : International publishers, c1940, 1963 printing.
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2.
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Baltimore, Johns Hopkins Press [1968]
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3.
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London, [England] ; New York, [New York] : Routledge, 2017. 2002
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4.
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Freeport, N.Y., Books for Libraries Press [1971, c1928]
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5.
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Oxford ; New York : Oxford University Press, 2009.
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6.
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London, Allen & Unwin [1960]
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7.
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Ithaca, N.Y., Cornell University Press [1966, c1932]
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