Glenn, William H. <br/><br/>
Number patterns 
[by] William H. Glenn [and] Donovan A. Johnson. 
 - St. Louis,  Webster Pub. Co.,  c1960. 
 - 47 p.  illus.  23 cm. 
 - Exploring mathematics on your own .
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number concept.<br/>Arithmetic.<br/>Algebra.
<br/><br/><label>LC Class. No.: </label>QA145  / .G55 
<br/><br/><label>Dewey Class. No.: </label>510 GLEN