Combinatorial mathematics and its applications :  proceedings of a conference held at the Mathematical Institute, Oxford, from 7-10 July, 1969 / 
edited by D. J. A. Welsh. 
 - London ;  New York :  Academic Press,  1971. 
 - x, 364 p. ;  24 cm. 
<br/><br/> Organized by the Mathematical Institute, Oxford. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0127433503 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combinatorial analysis--Congresses.