Spada, J. (1987). Grace: The secret lives of a princess. Doubleday.
Lua i Stíl Chicago (17ú heag.)Spada, James. Grace: The Secret Lives of a Princess. Garden City, N.Y: Doubleday, 1987.
Lua MLA (9ú heag.)Spada, James. Grace: The Secret Lives of a Princess. Doubleday, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.