Eckblad Gudrun <br/><br/>
Scheme theory. 

 - London  Academic Press        1980 
 - 131p.  cm. 
<br/><br/><label>Standard No.: </label>34251 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>S:44, M0