APA (7th ed.) Citation

Howard, G. (1993). The good English guide: English usage in the 1990's. Macmillan Press.

Chicago Style (17th ed.) Citation

Howard, Godfrey. The Good English Guide: English Usage in the 1990's. London: Macmillan Press, 1993.

MLA (9th ed.) Citation

Howard, Godfrey. The Good English Guide: English Usage in the 1990's. Macmillan Press, 1993.