Aelred, v. R., & Laker, M. E. (1977). Spiritual friendship. Cistercian fathers series.
芝加哥风格引文Aelred, von Rievaulx, 与 Mary Eugenia Laker. "Spiritual Friendship." Cistercian Fathers Series 1977.
MLA引文Aelred, von Rievaulx, 与 Mary Eugenia Laker. "Spiritual Friendship." Cistercian Fathers Series, 1977.
警告：这些引文格式不一定是100％准确.