Whitney, D. (1965). Encyclopaedia Americana Vol-27. Americana Corp.
Lua i Stíl Chicago (17ú heag.)Whitney, David. Encyclopaedia Americana Vol-27. New York: Americana Corp, 1965.
Lua MLA (9ú heag.)Whitney, David. Encyclopaedia Americana Vol-27. Americana Corp, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.