Columbia subject headings:
Harvard subject headings:
Agriculture--Economic aspects--Sudan--Shandi Region--History--19th century.
Jaʻaliyyīn (Arab tribe)
Shandi Region (Sudan)--Commerce--History--19th century.
Shandi Region (Sudan)--Economic conditions.
Sudan--History--1821-
Princeton subject headings:
Agriculture--Economic aspects--Sudan--Shandi Region--History--19th century.
Jaʻaliyyīn (Arab tribe)
Shandi Region (Sudan)--Commerce--History--19th century.
Shandi Region (Sudan)--Economic conditions.
Sudan--History--1821-