Alexander, William M <br/><br/>
Secondary education :  Basic principles and practices / 
William M Alexander y J Galen Sylor 
 - New York :  Rinehart and Co.,  1950 
 - 536p.;  22,50 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colegios<br/>Pedagogía
<br/><br/><label>Universal Decimal Class. No.: </label>373