Mittal, Harish. <br/><br/>
Textbook of discrete mathematics / 
By Harish Mittal, Vinay Kumar Goyal and Deepak Kumar Goyal. 
 - 1st ed. 
 - New Delhi :  I K International Publishing House Pvt Ltd ,  2012. 
 - xvi,412p. ;  23 cm. 
<br/><br/><label>ISBN: </label>9789380026763 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relation and functions<br/>Techniques of counting 
<br/><br/><label>Dewey Class. No.: </label>511.8   / MITH