Liu, C.L. <br/><br/>
Elements of discrete mathematics / 
by C.L. Liu. 
 - New York, N.Y. :  McGraw-Hill,  1977. 
 - x, 294 p. 
 - McGraw-Hill computer science series. .
<br/><br/> Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0070381313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combinatorial analysis.<br/>Algebra, Abstract.