APA Style
Crystal, David. (1968).
What is Linguistics ? .
London:
Edward Arnold Ltd.
Chicago Style
Crystal, David.
What is Linguistics ?.
London:
Edward Arnold Ltd,
1968.
Text.
MLA Style
Crystal, David.
What is Linguistics ?.
London:
Edward Arnold Ltd,
1968.
Text.
Turabian Style
Crystal, David.
What is Linguistics ?.
London:
Edward Arnold Ltd,
1968.
Print.