Gregorio, Herman C. <br/><br/>
Principles and methods of teaching / 
Herman C. Gregorio  
 - rev. ed.  
 - Quezon City:  Garotech Publishing,   c1976. 
 - xx, 580p. 
<br/><br/>Includes index  
<br/><br/><label>ISBN: </label>9-71-871108-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching<br/>Teaching methods 
<br/><br/><label>Dewey Class. No.: </label>Fil. 371.3 G821 1976