Columbia subject headings:
Harvard subject headings:
Ibn Khaldūn, 1332-1406--Congresses.
Ibn Khaldūn, 1332-1406. Kitāb al-ʻibar wa-dīwān al-mubtadaʾ wa-al-khabar. Muqaddimah--Congresses.
Princeton subject headings:
Ibn Khaldūn, 1332-1406--Congresses.