Lipschutz, Seymour <br/><br/>
Discrete Mathematics 

 - 3th edi. 
 - New Delhi  Tata McGraw Hill Education Pv  t Ltd.     2010 
 - xvi, 1.55 
<br/><br/><label>ISBN: </label>70669120 
<br/><br/><label>Dewey Class. No.: </label>511.6