TY  - BOOK
AU  - Haugen ,Einar .
TI  - The ecology of language / 
T2  - Language science and national development , 
SN  - 0804008029
U1  - 410 
PY  - 1990///
CY  - California : 
PB  - Stanford University Press , 
KW  - LINGUISTICS
N1  - NULL
ER  -