APA (7th ed.) Citation

O'Brien, R. (1969). Tragedy ; ten major plays. Bantam Books.

Chicago Style (17th ed.) Citation

O'Brien, Robert. Tragedy ; Ten Major Plays. New York: Bantam Books, 1969.

MLA (9th ed.) Citation

O'Brien, Robert. Tragedy ; Ten Major Plays. Bantam Books, 1969.