Ingpen, Robert <br/><br/>
Encyclopedia of Ideas that Changed the World:  The Greatest Discoveries and Inventions of Human History 

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 - Limpsfield  Dragons World  1993 
 - 223 p.   
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<br/><br/><label>ISBN: </label>1-85028-225-0 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Encyclopedia of Ideas 
<br/><br/><label>Dewey Class. No.: </label>608(031)