Columbia subject headings:
Harvard subject headings:
Leachman, Gerard, 1880-1920.
Ḍārī ibn al-Ẓāhir al-Maḥmūd, 1868-1928.
Princeton subject headings:
Ḍārī ibn al-Ẓāhir al-Maḥmūd, 1868-1928.
Leachman, Gerard, 1880-1920.