Lipschutz, Seymaur <br/><br/>
Theory & Problems of Discrets Mathematics 

 - 2nd 
 -  Tata Mc Graw Hill Publishing Company Ltd.   1997 
 - ix,528p  27cm 
<br/><br/> Includes Index 
<br/><br/><label>Dewey Class. No.: </label>511.1 L767t 1997