Symposium on Combinatorics and Graph Theory, Calcutta, 1980 <br/><br/>
Combinatorics and graph theory - proceedings   
ed. by S.B. Rao 
 - Berlin  Springer-Verlag  1981 
 - vii, 500p. 
 - Lecture Notes in Mathematics  V.885 .
<br/><br/><label>ISBN: </label>3540111514 
<br/><br/><label>Dewey Class. No.: </label>511.6  / N811