Columbia subject headings:
Mahdism--Sudan--Congresses.
Mahdī, ʻAbd al-Raḥmān, 1885---Congresses.
Sudan--History--1899-1956--Congresses.
Harvard subject headings:
Mahdī, ʻAbd al-Raḥmān, 1885---Congresses.
Nationalism--Sudan--Congresses.
Sudan--History--1899-1956--Congresses.
Princeton subject headings:
Mahdism--Congresses.
Mahdī, ʻAbd al-Raḥmān, 1885---Congresses.
Sudan--History--1899-1956--Congresses.