Davis Langdon and Everest. (2003). Spon's landscape and external works price book (22nd ed.). Spon Press.
Lua i Stíl Chicago (17ú heag.)Davis Langdon and Everest. Spon's Landscape and External Works Price Book. 22nd ed. London: Spon Press, 2003.
Lua MLA (8ú heag.)Davis Langdon and Everest. Spon's Landscape and External Works Price Book. 22nd ed. Spon Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.