Balakrishnan,VK, <br/><br/>
Combinatorics :  including concepts of graph theory /  Textual Documents 
VK Balakrishnan . 
 - New Delhi  Tata Mcgraw-Hill Publishing Company Ltd  1995 
 - 200p.:  24cm. 
<br/><br/><label>ISBN: </label>9780070035751 
<br/><br/><label>Subjects--Index Terms: </label>General principles of mathematics 
<br/><br/><label>Dewey Class. No.: </label>511