Não informado. (1965). Foundation Facts. Raymond International, Raymond Concrete Pile Division.
Lua i Stíl Chicago (17ú heag.)Não informado. Foundation Facts. New York: Raymond International, Raymond Concrete Pile Division, 1965.
Lua MLA (8ú heag.)Não informado. Foundation Facts. Raymond International, Raymond Concrete Pile Division, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.