Judd, Elliot L <br/><br/>
Teaching additional languages / 
Elliot L. Judd; Lihua Tan; Herbert J. Walberg. 
 - Geneva :  Belgium :  IBE;  International Academy of Education,  2001. 
 - 26 p. 
 - Educational practice series ;  6. .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>372.88 =20 "2001" JUD No.6.