Livermore, H. V. (1966). A new history of Portugal. University Press.
Lua i Stíl Chicago (17ú heag.)Livermore, H. V. A New History of Portugal. Cambridge: University Press, 1966.
Lua MLA (9ú heag.)Livermore, H. V. A New History of Portugal. University Press, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.