(1987). The New Encyclopaedia Britannica Volume 18 Higher Educations. The University of Chicago.
Lua i Stíl Chicago (17ú heag.)The New Encyclopaedia Britannica Volume 18 Higher Educations. The University of Chicago, 1987.
Lua MLA (8ú heag.)The New Encyclopaedia Britannica Volume 18 Higher Educations. The University of Chicago, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.