(1992). Webster's new world encyclopedia. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Webster's New World Encyclopedia. N.Y: Prentice-Hall, 1992.
Lua MLA (9ú heag.)Webster's New World Encyclopedia. Prentice-Hall, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.