Precontrainte, F. I. d. l. (1983). Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press.
Lua i Stíl Chicago (17ú heag.)Precontrainte, Federation Internationale de la. Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press, 1983.
Lua MLA (8ú heag.)Precontrainte, Federation Internationale de la. Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.