APA (7th ed.) Citation

Greenbaum, S. (1989). Good English and the grammarian. Longman.

Chicago Style (17th ed.) Citation

Greenbaum, Sidney. Good English and the Grammarian. London [etc.]: Longman, 1989.

MLA (9th ed.) Citation

Greenbaum, Sidney. Good English and the Grammarian. Longman, 1989.

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