Columbia subject headings:
Geology, Economic--Australia.
Geology, Economic--Papua New Guinea.
Mines and mineral resources--Australia.
Mines and mineral resources--Papua New Guinea.
Harvard subject headings:
Geology, Economic--Australia.
Geology, Economic--Papua New Guinea.
Gold ores--Geology--Australia.
Gold ores--Geology--Papua New Guinea.
Ore deposits--Australia.
Ore deposits--Papua New Guinea.
Princeton subject headings:
Geology, Economic--Australia.
Geology, Economic--Papua New Guinea.
Mines and mineral resources--Australia.
Mines and mineral resources--Papua New Guinea.