APA (7th ed.) Citation

Crystal, D. (1984). Who cares about English usage? / David Crystal. Penguin.

Chicago Style (17th ed.) Citation

Crystal, David. Who Cares About English Usage? / David Crystal. Harmondsworth: Penguin, 1984.

MLA (9th ed.) Citation

Crystal, David. Who Cares About English Usage? / David Crystal. Penguin, 1984.

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