APA Style
Trask,R.L. (2010).
Why do language changes? .
New York:
Cambrige University Press.
Chicago Style
Trask,R.L.
Why do language changes?.
New York:
Cambrige University Press,
2010.
Text.
MLA Style
Trask,R.L.
Why do language changes?.
New York:
Cambrige University Press,
2010.
Text.
Turabian Style
Trask,R.L.
Why do language changes?.
New York:
Cambrige University Press,
2010.
Print.