Columbia subject headings:
Colonization.
Competition, International.
Economic history--1918-
Economic policy.
International relations.
Natural resources.
World politics.
Harvard subject headings:
Colonization.
Competition, International.
Economic policy.
International relations
Natural resources.
World politics.
Princeton subject headings:
Colonization.
Competition, International.
Economic conditions--1918-
Economic policy.
International relations.
Natural resources.
World politics.