Columbia subject headings:
Geology--Australia.
Geology--New Zealand.
Geology--South Africa.
Gold mines and mining--Australia.
Gold mines and mining--New Zealand.
Gold mines and mining--South Africa.
Harvard subject headings:
Geology--Australia
Geology--New Zealand
Geology--South Africa
Gold mines and mining--Australia
Gold mines and mining--New Zealand
Gold mines and mining--South Africa
Princeton subject headings:
Geology--Australia.
Geology--New Zealand.
Geology--South Africa.
Gold mines and mining--Australia.
Gold mines and mining--New Zealand.
Gold mines and mining--South Africa.