APA (7th ed.) Citation

Aelred, v. R., & Laker, M. E. (1977). Spiritual friendship. Cistercian fathers series.

Chicago Style (17th ed.) Citation

Aelred, von Rievaulx, and Mary Eugenia Laker. "Spiritual Friendship." Cistercian Fathers Series 1977.

MLA (8th ed.) Citation

Aelred, von Rievaulx, and Mary Eugenia Laker. "Spiritual Friendship." Cistercian Fathers Series, 1977.

Warning: These citations may not always be 100% accurate.