APA (7th ed.) Citation

Crystal, D. (1990). Linguistics (2nd ed., repr.). Penguin Books.

Chicago Style (17th ed.) Citation

Crystal, David. Linguistics. 2nd ed., repr. London: Penguin Books, 1990.

MLA (9th ed.) Citation

Crystal, David. Linguistics. 2nd ed., repr. Penguin Books, 1990.

Warning: These citations may not always be 100% accurate.