Peiris, K <br/><br/>
Integrated approach to curriculum development in primary educaction in Sri Lanka / 
by K. Peiris. 
 - París :  Ginebra :  UNESCO ;  OIE,  1976. 
 - 25 p. 
 - Experiments and innovations in education ;  26 .
<br/><br/><label>ISBN: </label>9231013734 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>373.31 (548.7) =20 PEI No.26.