Cita APA (7a ed.)

Naranjo, C., & Barnes, P. (2004). The enneagram of society: Healing the soul to heal the world. Gateways Books and Tapes.

Cita Chicago Style (17a ed.)

Naranjo, Claudio, y Paul Barnes. The Enneagram of Society: Healing the Soul to Heal the World. Nevada City, Calif.: Gateways Books and Tapes, 2004.

Cita MLA (9a ed.)

Naranjo, Claudio, y Paul Barnes. The Enneagram of Society: Healing the Soul to Heal the World. Gateways Books and Tapes, 2004.