POPPER, Karl R. <br/><br/>
Objective knowledge :  an evolutionary approach / 
Karl R. Popper. 
 - Rev. ed. 
 - Oxford [Eng.] :  New York :  Clarendon Press ;  c1979. 
 - x, 395 p. ; 
<br/><br/> Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0198750242 
<br/><br/><label>Dewey Class. No.: </label>121