Ore, Oystein <br/><br/>
Graphs and their uses 
Oystein Ore 
 - London  Random House  1963 
 - viii,131p.  ill.  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graphic methods
<br/><br/><label>LC Class. No.: </label>QA90.O64