TY  - BOOK
AU  - Trask,R.L.
AU  - Millar,Robert McColl
TI  - Why do languages change?
SN  - 9780521838023 (hbk.)
PY  - 2010///
CY  - Cambridge
PB  - Cambridge University Press
KW  - English language
KW  - History
N1  - Includes bibliographical references (p. 187-189) and index
UR  - http://www.loc.gov/catdir/enhancements/fy1010/2010292914-t.html
ER  -