Sobel Max A <br/><br/>
Teaching mathematics    A sourcebook of aids, activities and strategies.      
Sobel Max A; Maletsky Evan M 
 - New Jersey   Prentice-Hall        1975 
 - xii,240p.  cm. 
<br/><br/><label>Standard No.: </label>34564 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>T2:(B), L5