Böwering, G. (1980). The mystical vision of existence in classical Islam: The Qur'ānic hermeneutics of the Sūfī Sahl At-Tustarī (d. 283/896). Studien zur Sprache, Geschichte und Kultur des islamischen Orients.
Chicago Style (17th ed.) CitationBöwering, Gerhard. "The Mystical Vision of Existence in Classical Islam: The Qur'ānic Hermeneutics of the Sūfī Sahl At-Tustarī (d. 283/896)." Studien Zur Sprache, Geschichte Und Kultur Des Islamischen Orients 1980.
MLA (8th ed.) CitationBöwering, Gerhard. "The Mystical Vision of Existence in Classical Islam: The Qur'ānic Hermeneutics of the Sūfī Sahl At-Tustarī (d. 283/896)." Studien Zur Sprache, Geschichte Und Kultur Des Islamischen Orients, 1980.
Warning: These citations may not always be 100% accurate.