Columbia subject headings:
Agriculture and politics--Sri Lanka.
Tamil (Indic people)--Sri Lanka.
Tea plantation workers--Labor unions--Sri Lanka.
Tea plantation workers--Sri Lanka--Social conditions.
Harvard subject headings:
Tamil (Indic people)--Sri Lanka--Politics and government.
Tea plantation workers--Labor unions--Sri Lanka.
Tea plantation workers--Political activity--Sri Lanka.
Tea plantations--Sri Lanka--History.
Tea trade--Sri Lanka--History.
Princeton subject headings:
Agriculture and politics--Sri Lanka.
Tamil (Indic people)--Sri Lanka.
Tea plantation workers--Sri Lanka--Social conditions.
Tea plantation workers--Trade unions--Sri Lanka.