APA Style

Al-Hujwiri, A, B, U., A.Nicholson, R. (1976). The kashf al-mahjub : the oldest persian treatise on sufism (First ed.). : Islamic Book Foundation.

MLA Style

Al-Hujwiri, Ali, Bin, Uthman., A.Nicholson, Reynold. "The kashf al-mahjub : the oldest persian treatise on sufism". First ed. : Islamic Book Foundation, 1976. Text.