Columbia subject headings:
Argentina--Foreign relations--Paraguay.
Argentina--History--War of Independence, 1810-1817.
Paraguay--Foreign relations--Argentina.
Harvard subject headings:
Argentina--Foreign relations--Paraguay.
Argentina--History--War of Independence, 1810-1817.
Paraguay--Foreign relations--Argentina.
Princeton subject headings:
Argentina--Foreign relations--Paraguay.
Argentina--History--War of Independence, 1810-1817.
Paraguay--Foreign relations--Argentina.