Não informado. (1970). Cement technology. Cement and Concrete Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Cement Technology. London: Cement and Concrete Association, 1970.
Lua MLA (8ú heag.)Não informado. Cement Technology. Cement and Concrete Association, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
