Ali, M., & Khan, M. Y. (1951). Early Caliphate ([3rd ed.].). Ahmadiyya anjuman-i-isha'at-i-Islam.
Chicago Style aipamenaAli, Muhammad, and Muhammad Yaqub Khan. Early Caliphate. [3rd ed.]. Lahore, India: Ahmadiyya anjuman-i-isha'at-i-Islam, 1951.
MLA aipamenaAli, Muhammad, and Muhammad Yaqub Khan. Early Caliphate. [3rd ed.]. Ahmadiyya anjuman-i-isha'at-i-Islam, 1951.
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