Columbia subject headings:
Griquas--South Africa--Philippolis--History--Sources.
Philippolis (South Africa)--History--Sources.
Harvard subject headings:
Griquas--South Africa--Politics and government--19th century.
Philippolis (South Africa)--History.
Princeton subject headings:
Griquas--South Africa--Philippolis--History--Sources.
Philippolis (South Africa)--History--Sources.