Andrews Colin & Wilson Paul. (1993). Foundation. Headline Feature Books Publishing.
Lua i Stíl Chicago (17ú heag.)Andrews Colin agus Wilson Paul. Foundation. London: Headline Feature Books Publishing, 1993.
Lua MLA (9ú heag.)Andrews Colin agus Wilson Paul. Foundation. Headline Feature Books Publishing, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.