Columbia subject headings:
Geophysics--Research--Indonesia--History.
Geophysics--Research--Netherlands--History.
Geophysics--Research--Suriname--History.
Harvard subject headings:
Geophysics--Research--Indonesia--History.
Geophysics--Research--Netherlands--History.
Geophysics--Research--Suriname--History.
Princeton subject headings:
Geophysics--Research--Dutch East Indies--History.
Geophysics--Research--Netherlands--History.
Geophysics--Research--Suriname--History.