Johnston, C. L.  <br/><br/>
Developmental mathematics / C.L. Johnston, Aldene T. Willis, Gale M. Hughes.- 3rd ed. 

 - 3rd ed. 
 - Belmont, Calif. : Wadsworth Pub. Co., c1991. 
<br/><br/><label>ISBN: </label>0534142087 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512.9 JOH