Weir, A. (1998). Lancaster and York: The wars of the roses. Pimlico.
Lua i Stíl Chicago (17ú heag.)Weir, Alison. Lancaster and York: The Wars of the Roses. London: Pimlico, 1998.
Lua MLA (9ú heag.)Weir, Alison. Lancaster and York: The Wars of the Roses. Pimlico, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.