Cummings, C. (1980). Spirituality and the desert experience. Institute of Formative Spirituality, Duquesne University.
芝加哥风格引文Cummings, Charles. Spirituality and the Desert Experience. Pittsburgh, PA: Institute of Formative Spirituality, Duquesne University, 1980.
MLA引文Cummings, Charles. Spirituality and the Desert Experience. Institute of Formative Spirituality, Duquesne University, 1980.
警告：这些引文格式不一定是100％准确.