Haugen , Einar . <br/><br/>
The ecology of language /  
Einar Haugen ; selected and introducted by Anwar S Dil. 
 - California :   Stanford University Press ,   1990. 
 - xvi, 336p. :   ill. ;   22cm .  
 - Language science and national development ,   NULL  NULL; .
 - Language science and national development ,   NULL  NULL; .
<br/><br/>NULL 
<br/><br/><label>ISBN: </label>0804008029  USD 47.50 
<br/><br/><label>Subjects--Index Terms: </label>LINGUISTICS 
<br/><br/><label>Dewey Class. No.: </label>410  / HAU/E