Palmer, Alan
The new Penguin dictionary of modern history, 1789-1945
Penguin Books, 1981
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Palmer, Alan
The penguin dictionary of twentieth-century history 1900-1982
Penguin Books , 1987
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The Penguin dictionary of mathematics
edited by David Nelson
Penguin Books, 2003
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Mautner, Thomas
The Penguin dictionary of philosophy
Penguin Book, 2005
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Fergusson, Rosalind
The penguin rhyming dictionary
Bloomsbury Books, 1985
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