APA (7th ed.) Citation

Boxer, C. R. (1969). The Portuguese seaborne empire, 1415 - 1825. Knopf.

Chicago Style (17th ed.) Citation

Boxer, Charles R. The Portuguese Seaborne Empire, 1415 - 1825. New York: Knopf, 1969.

MLA (9th ed.) Citation

Boxer, Charles R. The Portuguese Seaborne Empire, 1415 - 1825. Knopf, 1969.

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