Columbia subject headings:
Harvard subject headings:
Carvalho, José Liberato Freire de, 1772-1855
Europe--Politics and government--1789-1900
Investigador Português.
Portuguese periodicals--England--History--19th century.
Princeton subject headings:
Carvalho, José Liberato Freire de, 1772-1855.
Europe--Politics and government--1789-1900.
Investigador Português.
Portuguese periodicals--England--History--19th century.