Bach, Daniel J. <br/><br/>
Prealgebra    mathematics for a variable world 

 -  3th ed. 
 - Boston   McGraw-Hill    2006 
<br/><br/><label>ISBN: </label>0-07-296910-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Algebra<br/>Mathematics<br/>Mathematics
<br/><br/><label>LC Class. No.: </label>QA39.3.B33