Cvetkovic, Dragos M. <br/><br/>
Spectra of graphs; theory and application  / 

 - New York:  Academic Press,  1979 
 - 368p. Index, Bibl. 
 - Pure and Applied Mathematics  a series of monographs and textbooks ; v. 87  .
<br/><br/><label>Dewey Class. No.: </label>511.5  / C993.SG