Columbia subject headings:
Gerretson, Frederik Carel, 1884-1958.
Indonesia--Foreign relations--Netherlands.
Netherlands--Foreign relations--Indonesia.
Harvard subject headings:
Gerretson, Frederik Carel, 1884-1958.
Indonesia--Foreign relations--Netherlands.
Netherlands--Foreign relations--Indonesia.
Princeton subject headings:
Gerretson, Frederik Carel, 1884-1958.
Indonesia--Foreign relations--Netherlands.
Netherlands--Foreign relations--Indonesia.