Columbia subject headings:
Iran--History--Qajar dynasty, 1794-1925.
Ẓill al-Sulṭān, Masʻūd ibn Nāṣir al-Dīn, 1849-1918.
Harvard subject headings:
Princes--Iran--Biography.
Ẓill al-Sulṭān, Masʻūd ibn Nāṣir al-Dīn, 1849-1918
Princeton subject headings:
Princes--Iran--Biography.
Ẓill al-Sulṭān, Masʻūd ibn Nāṣir al-Dīn, 1849-1918.g