Lerman Manuel <br/><br/>
Degrees of Unsolvability    Local and global theory.      
Lerman Manuel 
 - New York     Springer Verlag       1983 
 - xiii,307p.  cm. 
<br/><br/><label>Standard No.: </label>44756 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R14, M3