Ṣabra, ʿ. I. (1986). Maʿālim at-takāmul al-qaumī wa'l-ḥaḍārī qabla 'l-Islām wa-daur al-Yaman. Maʿālim at-takāmul al-qaumī wa'l-ḥaḍārī qabla 'l-Islām wa-daur al-Yaman.
Chicago Style (17th ed.) CitationṢabra, ʿAlī Ibn-ʿAlī. "Maʿālim At-takāmul Al-qaumī Wa'l-ḥaḍārī Qabla 'L-Islām Wa-daur Al-Yaman." Maʿālim At-takāmul Al-qaumī Wa'l-ḥaḍārī Qabla 'L-Islām Wa-daur Al-Yaman 1986.
MLA (8th ed.) CitationṢabra, ʿAlī Ibn-ʿAlī. "Maʿālim At-takāmul Al-qaumī Wa'l-ḥaḍārī Qabla 'L-Islām Wa-daur Al-Yaman." Maʿālim At-takāmul Al-qaumī Wa'l-ḥaḍārī Qabla 'L-Islām Wa-daur Al-Yaman, 1986.
Warning: These citations may not always be 100% accurate.