Bach, Daniel J. <br/><br/>
Prealgebra :  Mathematics for a Variable World. 

 - 3rd/ed. 
 - xxii, 557p.;  incl. index and illus.;  27cm 
<br/><br/><label>ISBN: </label>0072969105 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--New York--2006--paperbound