Popper, Karl R. <br/><br/>
Conjectures and refutations :  the growth of scientific knowledge 
Karl R. Popper 
 - 4th. ed. 
 - London :  Routledge & Kegan Paul ,  1981 
 - xiii, 431p. :  ill. ;  21 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0710065078 0710065086 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and technology<br/>Science<br/>Knowledge--Theory <br/>Methodology
<br/><br/><label>Dewey Class. No.: </label>500  / POP