Butler, Charles H.   <br/><br/>
The teaching of secondary mathematics / 
Charles H. Butler and Frank Lynwood Wren. 
 - 4th ed. 
 - New York :   McGraw-Hill,  c 1965. 
 - 613 p. :  ill. ;  24 cm. 
 - Curriculum and methods in education. .
<br/><br/> Includes index. 
<br/><br/>Bibliography : p. 602-604 
<br/><br/>338  338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510.7 / B976t