Columbia subject headings:
Bin Barakah, al-Mahdī, 1920-1965--Congresses.
Harvard subject headings:
Bin Barakah, al-Mahdī, 1920-1965--Congresses.
Princeton subject headings:
Bin Barakah, al-Mahdī, 1920-1965--Congresses.
Statesmen--Morocco--Congresses.