APA (7th ed.) Citation

Broughton, G. (1990). The Penguin English grammar A-Z: For advanced students. Penguin.

Chicago Style (17th ed.) Citation

Broughton, Geoffrey. The Penguin English Grammar A-Z: For Advanced Students. London: Penguin, 1990.

MLA (8th ed.) Citation

Broughton, Geoffrey. The Penguin English Grammar A-Z: For Advanced Students. Penguin, 1990.

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