TY  - BOOK
AU  - Harrison, David K
TI  - When languages die: the extinction of the worlds languages and the erosion of human knowledge
SN  - 9780195372069
U1  - 417.7 
PY  - 2007///
CY  - New Delhi
PB  - Oxford
KW  - Languages obsolescence
N1  - includes bibliography and indexes
ER  -