Não informado. (1949). Historic preservation. National Trust for Historic Preservation.
Lua i Stíl Chicago (17ú heag.)Não informado. Historic Preservation. Washington: National Trust for Historic Preservation, 1949.
Lua MLA (8ú heag.)Não informado. Historic Preservation. National Trust for Historic Preservation, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.