Columbia subject headings:
Islam--Doctrines.
Islam--Essence, genius, nature.
Ṣabrī, Muṣṭafá, 1869-1954.
Harvard subject headings:
Islam--Doctrines
Islam--Essence, genius, nature
Ṣabrī, Muṣṭafá, 1869-1954
Princeton subject headings:
Islam--Doctrines.
Islam--Essence, genius, nature.
Ṣabrī, Muṣṭafá, 1869-1954.