Lecker, M. (ca. 1993). Hudhayfa b. al-Yaman and Ammar b. Yasir, Jewish converts to Islam [Book]. Quaderni di Studi Arabi, 11 (1993) 149-162, 11 (1993) 149-162.
Chicago Manual of Style 17th edition (author-date)Lecker, Michael. 1993. „Hudhayfa b. al-Yaman and Ammar b. Yasir, Jewish converts to Islam“. Book. Quaderni di Studi Arabi, Nr. 11 (1993) 149-162: 11 (1993) 149-162.
Springer - Basic (author-date)Lecker M (1993) Hudhayfa b. al-Yaman and Ammar b. Yasir, Jewish converts to Islam. Quaderni di Studi Arabi 11 (1993) 149-162
Springer - Lecture Notes in Computer Science1.Lecker, M.: Hudhayfa b. al-Yaman and Ammar b. Yasir, Jewish converts to Islam. Quaderni di Studi Arabi. 11 (1993) 149-162 (1993).
DIN 1505-2 (author-date, Deutsch) - standard superseded by ISO-690Lecker, Michael: Hudhayfa b. al-Yaman and Ammar b. Yasir, Jewish converts to Islam. In: Quaderni di Studi Arabi (1993), Nr. 11 (1993) 149-162, S. 11 (1993) 149-162