APA (7th ed.) Citation

Plotinus & O'Brien, E. J. (1964). The essential Plotinus: Representative treatises from the Enneads. New American Library.

Chicago Style (17th ed.) Citation

Plotinus and Elmer J. O'Brien. The Essential Plotinus: Representative Treatises from the Enneads. [New York]: New American Library, 1964.

MLA (9th ed.) Citation

Plotinus and Elmer J. O'Brien. The Essential Plotinus: Representative Treatises from the Enneads. New American Library, 1964.