Singh, Yogendra Narain. <br/><br/>
Discrete mathematical structures / 
By Yogendra Narain Singh. 
 - 1st ed. 
 - New Delhi :  Wiley India ,  2010. 
 - xxi,340p. ; 
<br/><br/><label>ISBN: </label>9788126527908 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural numbers<br/>Algebraic structures
<br/><br/><label>Dewey Class. No.: </label>511.8   / SINY