Columbia subject headings:
Industrial laws and legislation--Paraguay.
Investments, Foreign--Law and legislation--Paraguay.
Paraguay--Economic conditions--1918-1954.
Harvard subject headings:
Industrial laws and legislation--Paraguay.
Investments, Foreign--Law and legislation--Paraguay.
Paraguay--Economic conditions--1918-
Princeton subject headings:
Industrial laws and legislation--Paraguay.
Investments, Foreign--Law and legislation--Paraguay.
Paraguay--Economic conditions--1918-.