Biswal, Purna Chandra <br/><br/>
Discrete mathematics and graph theory .- 2nd ed. 
Purna Chandra Biswal 
 - 2nd ed. 
 - New Delhi  PHI Learning Private Ltd.  2009 
 - x,490p. 
<br/><br/><label>ISBN: </label>978-81-203-3880-7 
<br/><br/><label>Subjects--Index Terms: </label>Discrete mathematics  graph theory 
<br/><br/><label>Universal Decimal Class. No.: </label>519.11:519.17  / BIS