Columbia subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Zaynab.
Harvard subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Zaynab.
Princeton subject headings:
Haykal, Muḥammad Ḥusayn, 1888-1956. Zaynab.