Teaching school mathematics /  
edited by W. Servais and T. Varga. 
 - Harmondsworth :  Penguin,  1971. 
 - 308 p. :  ill. ;  21 cm. 
 - A Unesco source book Penguin education .
<br/><br/>Bibliography: p. 289-298. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Secondary)
<br/><br/><label>Dewey Class. No.: </label>510.712  / TEA 1971