Servais, Willy. <br/><br/>
Teaching school mathematics / 
edited by W. Servais and T. Varga. 
 - Harmondsworth :  Penguin,  1971. 
 - A Unesco source book Penguin education .
<br/><br/>Bibliography: p. 289-298. 
<br/><br/><label>ISBN: </label>0140800840  L.1.20 a13.2..1.12 
<br/><br/><label>LCCN: </label>72883583 
<br/><br/><label>Nat. Bib. No.: </label>B71-23919 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics -- Study and teaching (Secondary)--Mathematics -- Study and teaching (Secondary)
<br/><br/><label>LC Class. No.: </label>QA11  / .S46 
<br/><br/><label>Dewey Class. No.: </label>510/.71/2