Know your world extra. [Xerox Education Publications].
Lua i Stíl Chicago (17ú heag.)Know Your World Extra. [Middletown, CT]: [Xerox Education Publications].
Lua MLA (9ú heag.)Know Your World Extra. [Xerox Education Publications].
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.