Lengrand, Paul <br/><br/>
Parent education-operational framework :  last of three documents offering practical guidelines to programme organisers/ 
by Paul Lengrand. 
 - Paris :  New York :  UNESCO;  UNICEF,  1981. 
 - 7 p. 
 - Notes, comments...;  67 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.018. 15 =20 LEN No.67.