Columbia subject headings:
Industries--Poland--History.
Poland--Foreign economic relations--Soviet Union--History.
Soviet Union--Foreign economic relations--Poland--History.
Harvard subject headings:
Industrialization--Poland--History.
Industries--Poland--History.
Poland--Foreign economic relations--Soviet Union.
Soviet Union--Foreign economic relations--Poland.
Princeton subject headings:
Industrialization--Poland--History.
Poland--Foreign economic relations--Soviet Union.
Soviet Union--Foreign economic relations--Poland.