Bernard, H. Russell. <br/><br/>
Preserving language diversity. 

 - Par¡s-FR :   International Union of Anthropological and Ethnological Sciences,   1992. 
 - p. 12-22  
 - Irregular 
 - Vol. 11, no. 10(1991-1992) 
 - Review of ethnology ;   Vol. 11, no. 10 .
<br/><br/> Publicada por E. Styglmayr. 
<br/><br/><br/>Inglés.