Lectures and essays from thirty years <br/><br/>
  

 - London: Routledge Publishers 
, 1545 
<br/><br/> BK  Knowledge:Iquorance, Source, Science, better world 
<br/><br/><label>ISBN: </label>192/POP/I 
<br/><br/><label>Standard No.: </label>Popper, Karl Raimund, 1902- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BK
<br/><br/><label>Dewey Class. No.: </label> /