Böwering, G. (1979). The mystical vision of existence in classical Islam: The Qur'ānic hermeneutics of the Ṣūfī Sahl At-Tustarī (d. 283/896). Walter de Gruyter.
芝加哥风格引文Böwering, Gerhard. The Mystical Vision of Existence in Classical Islam: The Qur'ānic Hermeneutics of the Ṣūfī Sahl At-Tustarī (d. 283/896). Berlin ; New York: Walter de Gruyter, 1979.
MLA引文Böwering, Gerhard. The Mystical Vision of Existence in Classical Islam: The Qur'ānic Hermeneutics of the Ṣūfī Sahl At-Tustarī (d. 283/896). Walter de Gruyter, 1979.
警告：这些引文格式不一定是100％准确.