Columbia subject headings:
Africa--Social conditions--20th century.
Motor vehicles--Social aspects--Africa--History--20th century.
Transportation, Automotive--Social aspects--Africa--History--20th century.
Harvard subject headings:
Africa--Social conditions--20th century.
Motor vehicles--Social aspects--Africa--History--20th century.
Transportation, Automotive--Social aspects--Africa--History--20th century.
Princeton subject headings:
Africa--Social conditions--20th century.
Motor vehicles--Social aspects--Africa--History--20th century.
Transportation, Automotive--Social aspects--Africa--History--20th century.