Quadratic equations and curves / 
Leon J. Ablon ... [et al.]. 
 - 2nd ed. 
 - Menlo Park, Calif. :  Benjamin/Cummings Pub. Co.,  c1981. 
 - Series in mathematics modules ;  module 5 .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0805301356 
<br/><br/><label>LCCN: </label>80024969 //r83 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations, Quadratic.<br/>Algebra -- Graphic methods.--Algebra -- Graphic methods.
<br/><br/><label>LC Class. No.: </label>QA215  / .Q32 1981 
<br/><br/><label>Dewey Class. No.: </label>512.9 s  512.9/42