APA Style

Crystal, David. (1969). What is linguistics ? (2). Australia: Edward Arnold.

Chicago Style

Crystal, David. What is linguistics ?. 2 Australia: Edward Arnold, 1969. Text.

MLA Style

Crystal, David. What is linguistics ?. 2 Australia: Edward Arnold, 1969. Text.

Turabian Style

Crystal, David. What is linguistics ?. 2 Australia: Edward Arnold, 1969. Print.