Word Power 1990, Penguin Books Ltd, London

ISBN-13: 9780140137903

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Word Power 1983, Penguin Books Ltd, London

ISBN-13: 9780140224061

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Word Power 1979, Penguin Books Ltd

ISBN-13: 9780140046724

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Word Power 1977, Pierrot Publishing Ltd, London ()

ISBN-13: 9780905310022

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