APA (7th ed.) Citation

Bruce, N. F. (1975). Portugal, the last empire. Wiley.

Chicago Style (17th ed.) Citation

Bruce, Neil F. Portugal, the Last Empire. New York: Wiley, 1975.

MLA (9th ed.) Citation

Bruce, Neil F. Portugal, the Last Empire. Wiley, 1975.

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