Toumela, Raimo <br/><br/>
Theoretical concepts 

 - 
 - New York  Springer-Verlag  1973 
 - xiv,254p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Theoretical concepts 
<br/><br/><label>Dewey Class. No.: </label>168