APA (7th ed.) Citation

Crystal, D., & Crystal, H. (2000). Words on words: Quotations about language and languages. Penguin Books Ltd.

Chicago Style (17th ed.) Citation

Crystal, David, and Hilary Crystal. Words on Words: Quotations About Language and Languages. Harmondsworth, Middlesex, England: Penguin Books Ltd, 2000.

MLA (9th ed.) Citation

Crystal, David, and Hilary Crystal. Words on Words: Quotations About Language and Languages. Penguin Books Ltd, 2000.

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