Lewis,harry r / papadimitriou, christos h  <br/><br/>
Elements of the theory of computation  

 - Prentice hall  
<br/><br/><label>ISBN: </label>0132734265 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Computational complexity   2. Machine theory 
<br/><br/><label>Dewey Class. No.: </label>004 LEW