Garey, Michael R. <br/><br/>
Computers and intractability: A guide to the theory of NP-completeness 
by Michael R Garey and David S Johnson 
 - New York  W H Freeman and Company  1979 
 - x, 340p. 
 - A Series of books in the mathematical sciences   .
<br/><br/><label>ISBN: </label>0716710455 
<br/><br/><label>Dewey Class. No.: </label>519.4  / N79;1