Proga, Rosanne. <br/><br/>
Arithmetic and algebra 
Rosanne Proga. 
 - Boston, MA  Prindle, Weber & Schmidt  c1986. 
 - xii, 521, 110 p.  ill.  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0871509075 (pbk.) 087150913X (hard) 
<br/><br/><label>LCCN: </label>85012079  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1961.<br/>Algebra
<br/><br/><label>LC Class. No.: </label>QA107  / .P74 1986 
<br/><br/><label>Dewey Class. No.: </label>513/.12