1978

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1976

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London / Oxford New York, Oxford University Press

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London-Oxford-New York, Oxford University Press. 1961

London-Oxford-New York, Oxford University Press. 1977

1977

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London/New York/Toronto, Oxford University Press 1972

London, New York, Toronto : Oxford University Press

London-New York-Toronto, Oxford University Press-Sandpiper Books Ltd 1999

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London, New York & Toronto: Oxford University Press