Cita APA (7a ed.)

Sommerfeldt, J. R. (1991). The Spiritual Teachings of Bernard of Clairvaux: An Intellectual History of the Early Cistercian Order. Cistercian Publications.

Cita Chicago Style (17a ed.)

Sommerfeldt, John R. The Spiritual Teachings of Bernard of Clairvaux: An Intellectual History of the Early Cistercian Order. Kalamazoo Michigan: Cistercian Publications, 1991.

Cita MLA (9a ed.)

Sommerfeldt, John R. The Spiritual Teachings of Bernard of Clairvaux: An Intellectual History of the Early Cistercian Order. Cistercian Publications, 1991.