APA (7th ed.) Citation

David, C. (1975). What is Linguistics / David Crystal. Edward Arnold.

Chicago Style (17th ed.) Citation

David, Crystal. What Is Linguistics / David Crystal. Edward Arnold, 1975.

MLA (8th ed.) Citation

David, Crystal. What Is Linguistics / David Crystal. Edward Arnold, 1975.

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