APA (7th ed.) Citation

O'Hearn, C. (1989). Writing, grammar and usage. Macmillan.

Chicago Style (17th ed.) Citation

O'Hearn, Carolyn. Writing, Grammar and Usage. New York: Macmillan, 1989.

MLA (9th ed.) Citation

O'Hearn, Carolyn. Writing, Grammar and Usage. Macmillan, 1989.