Fishburn, Peter C. <br/><br/>
Interval orders and interval graphs  : a study of partially ordered sets / 

 - New York:  John Wiley,  1985 
 - xi, 215p. Index 
 - Wiley interscience series in discrete Mathematics .
<br/><br/><label>ISBN: </label>0471812846 
<br/><br/><label>Dewey Class. No.: </label>511.5  / F532.IO