Biswal, Purna Chandra. <br/><br/>
Discrete mathematics and graph theory 

 - New Delhi :  Prentice Hall Of India,  1994 
 - 490. 
<br/><br/><label>ISBN: </label>9788120338807  
<br/><br/><label>Subjects--Topical Terms: </label><br/>General principles of mathematics
<br/><br/><label>Dewey Class. No.: </label>511  / BIS