Grolier International. (1987). Grolier academic encyclopedia: Vol : 16. Grolier International, Academic American.
Lua i Stíl Chicago (17ú heag.)Grolier International. Grolier Academic Encyclopedia: Vol : 16. USA: Grolier International, Academic American, 1987.
Lua MLA (9ú heag.)Grolier International. Grolier Academic Encyclopedia: Vol : 16. Grolier International, Academic American, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.