Columbia subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Hayāt Muhammad.
Muḥammad, Prophet, -632--Biography--History and criticism.
ʻAqqād, ʻAbbās Maḥmūd, 1889-1964. ʻAbqarīyat Muḥammad.
Ḥakīm, Tawfīq. Muḥammad.
Ḥusayn, Ṭāhā, 1889-1973. ʻAlá Hāmish al-Sīrah.
Harvard subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Ḥayāt Muḥammad.
Muḥammad, Prophet, -632--Biography--History and criticism.--History and criticism.
ʻAqqād, ʻAbbās Maḥmūd, 1889-1964. ʻAbqarīyat Muḥammad.
Ḥakīm, Tawfīq. Muḥammad.
Ḥusayn, Ṭāhā, 1889-1973. ʻAlá Hāmish al-Sīrah.
Princeton subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Ḥayāt Muḥammad.
Ḥakīm, Tawfīq. Muḥammad.
Ḥusayn, Ṭāhā, 1889-1973. ʻAlá Hāmish al-Sīrah.
Muḥammad, Prophet, -632--Biography--History and criticism.
ʻAqqād, ʻAbbās Maḥmud, 1889-1964. ʻAbqarīyat Muḥammad.