Columbia subject headings:
Rebecca Riots, 1839-1844.
Toll roads--Wales--History--19th century.
Wales--Social conditions--19th century.
Harvard subject headings:
Rebecca Riots, 1839-1844.
Toll roads--Wales--History--19th century.
Wales--Social conditions--19th century.
Princeton subject headings:
Rebecca Riots, 1839-1844.
Wales--History--19th century.