APA (7th ed.) Citation

Duffy, J. (1955). Shipwreck & empire: Being an account of Portuguese maritime disasters in a century of decline. Harvard University Press.

Chicago Style (17th ed.) Citation

Duffy, James. Shipwreck & Empire: Being an Account of Portuguese Maritime Disasters in a Century of Decline. Cambridge: Harvard University Press, 1955.

MLA (9th ed.) Citation

Duffy, James. Shipwreck & Empire: Being an Account of Portuguese Maritime Disasters in a Century of Decline. Harvard University Press, 1955.