Columbia subject headings:
Saudi Arabia--Economic conditions--20th century.
Saudi Arabia--History--20th century.
Saudi Arabia--Social conditions--20th century.
Saudi Arabia--Social life and customs--20th century.
Harvard subject headings:
Industries--Social aspects--Saudi Arabia.
Saudi Arabia--Economic conditions--20th century.
Saudi Arabia--Social conditions--20th century.
Urbanization--Saudi Arabia--History--20th century.
Princeton subject headings:
Industries--Social aspects--Saudi Arabia.
Saudi Arabia--Economic conditions--20th century.
Saudi Arabia--Social conditions--20th century.
Urbanization--Saudi Arabia--History--20th century.