Patterns in mathematics / 
Bernard H. Gundlach...[et al.]. 
 - rev. ed. 
 - California :  River Forest,  c 1974. 
 - 352 p. :   ill. ;  23 cm. 
 - Understanding mathematics program. .
<br/><br/> Includes index. 
<br/><br/>346  346 
<br/><br/><label>ISBN: </label>0-8445-1443-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.<br/>Arithmetic--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>510 / G956o