Berge, C. <br/><br/>
Principles of combinatorics   

 - New York  Academic Press  1971 
 - viii, 176p. 
 - Mathematics in Science and Engineering   v. 72 .
<br/><br/> "First published in French language under the title' Principles de combinatoire".   
<br/><br/><label>Dewey Class. No.: </label>511.6  / B495.PC