Englefield Ronald <br/><br/>
Mind at work and play   
  

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 - New York  Prometheus Books  1985 
 - 183, Cms., notes, index. 
<br/><br/> B   
<br/><br/>  
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>150 eng/min