APA (7th ed.) Citation

Diffie, B. W., & Winius, G. D. (1977). Foundations of the Portuguese empire, 1415-1580. University of Minnesota Press.

Chicago Style (17th ed.) Citation

Diffie, Bailey Wallys, and George Davison Winius. Foundations of the Portuguese Empire, 1415-1580. Minneapolis: University of Minnesota Press, 1977.

MLA (9th ed.) Citation

Diffie, Bailey Wallys, and George Davison Winius. Foundations of the Portuguese Empire, 1415-1580. University of Minnesota Press, 1977.

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