ABLON, Leon J. .et al <br/><br/>
Quadratic Equations and Curves:steps in mathematics modules. 

 - 2nd ed 
 - California  The Benjamin/Cummings Publish  ing Company1981 
 - v, 144p.  Mod -05 
<br/><br/><label>ISBN: </label>0-8053-0135-6 
<br/><br/><label>Dewey Class. No.: </label>512.9