KENNEDY, P. (1993). Preparing for the twenty-first century. Random House.
Lua i Stíl Chicago (17ú heag.)KENNEDY, Paul. Preparing for the Twenty-first Century. New York: Random House, 1993.
Lua MLA (9ú heag.)KENNEDY, Paul. Preparing for the Twenty-first Century. Random House, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.