Nowlan, Robert A. <br/><br/>
Lessons in essential mathematics / 
Robert A. Nowlan, Cecilia Lowe. 
 - New York :  Harper & Row,  1977. 
 - 2 v. :  ill. ;  28 cm. 
<br/><br/> Includes indexes 
<br/><br/>book 1. Arithmetic.--book 2. Algebra 
<br/><br/><label>ISBN: </label>0060448636 (v. 1) 
<br/><br/><label>LCCN: </label>76-25023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--1961<br/>Algebra