Columbia subject headings:
British Phosphate Commission--History.
Christmas Island Phosphate Commission--History.
Phosphate industry--Christmas Island (Indian Ocean)--History.
Harvard subject headings:
British Phosphate Commission--History.
Christmas Island Phosphate Commission--History.
Phosphate industry--Christmas Island (Indian Ocean)--History.
Princeton subject headings:
British Phosphate Commission--History.
Christmas Island Phosphate Commission--History.
Phosphate industry--Christmas Island (Indian Ocean)--History.