APA (7th ed.) Citation

DENIS, F. (1846). Portugal. Firmin Didot.

Chicago Style (17th ed.) Citation

DENIS, Ferdinand. Portugal. Paris: Firmin Didot, 1846.

MLA (9th ed.) Citation

DENIS, Ferdinand. Portugal. Firmin Didot, 1846.

Warning: These citations may not always be 100% accurate.