Thomas, R. Murray <br/><br/>
Educational personnel inefficiency in developing nations :  causes and solutions / 
by R. Murray Thomas. 
 - París :  New York :  UNESCO ;  UNICEF,  1981. 
 - 21 p. 
 - Notes, comments... ;  96 .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>371.1 (-77) =20 THO No.96.