Ratnaike, Jayananda <br/><br/>
Early childhood education through home-based activities / 
by Jayananda Ratnaike. 
 - París :  New York :  UNESCO ;  UNICEF,  1981. 
 - 11 p. 
 - Notes, comments... ;  94 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>372.3 =20 RAT No.94.