Descriptive study of significant bilingual instructional features. 

 - Washington-XXU :   National Clearinghouse for Bilingual Education,   1981. 
 - p. 3-4 
 - Irregular 
 - Vol. IV, no. 4(Apr. 1981) 
 - Forum ;   Vol. IV, no. 4 .
 - National Clearinghouse for Bilingual Education. .
<br/><br/><br/>Inglés.