Cita APA (7a ed.)

Plotino, Page, B. S., & Mackenna, S. (1952). The six enneads. Encyclopaedia Britannica.

Cita Chicago Style (17a ed.)

Plotino, Bertram Samuel Page, y Stephen Mackenna. The Six Enneads. Chicago, Ill.: Encyclopaedia Britannica, 1952.

Cita MLA (8a ed.)

Plotino, et al. The Six Enneads. Encyclopaedia Britannica, 1952.