Bent, Ruyard K. <br/><br/>
Principles of secondary education / 
Ruyard K. Bent and Henry H. Kronenberg. 
 - 4th ed. 
 - New York :  McGra-hill book company,  c 1961. 
 - vii, 438 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Secondary education.
<br/><br/><label>Dewey Class. No.: </label>373 / B444p