AMERICAN, C. I. (1964). Concrete Shell Structures Practice And Commentary. ACI.
Lua i Stíl Chicago (17ú heag.)AMERICAN, Concrete Institute. Concrete Shell Structures Practice And Commentary. ACI, 1964.
Lua MLA (8ú heag.)AMERICAN, Concrete Institute. Concrete Shell Structures Practice And Commentary. ACI, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.