Index and reading guide to numbers N.S.1 to N.S.100. 

 - París :  New York :  Rome :  UNESCO ;  UNICEF ;  WFP,  1982. 
 - 81 p. 
 - Notes Comments...(Child, Family, Community) ;  New Series .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>OC 087.5 (083.86) (100)=20 "1982" IND.