APA (7th ed.) Citation

Crystal, D. (2009). The future of language. Routledge.

Chicago Style (17th ed.) Citation

Crystal, David. The Future of Language. London New York: Routledge, 2009.

MLA (9th ed.) Citation

Crystal, David. The Future of Language. Routledge, 2009.

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