Crellin, Cecil T. <br/><br/>
Education and infantile mortality :  the problem of attitudinal change / 
by CecilT. Crellin. 
 - París :  New York :  UNESCO ;  UNICEF,  1981. 
 - 8 p. :  il. 
 - Notes, comments... ;  92 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>393 -053.2 (-77)=20 CRE No.92.