Diffie, B. W., & Diffie, B. W. (1977). Foundations of the Portuguese empire, 1415-1580. University of Minnesota Press.
Chicago Style (17th ed.) CitationDiffie, Bailey W., and Bailey W.;Winius Diffie. Foundations of the Portuguese Empire, 1415-1580. University of Minnesota Press, 1977.
MLA (9th ed.) CitationDiffie, Bailey W., and Bailey W.;Winius Diffie. Foundations of the Portuguese Empire, 1415-1580. University of Minnesota Press, 1977.
Warning: These citations may not always be 100% accurate.