Precontrainte, F. I. d. l. (1983). Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press.
Dyfyniad Arddull ChicagoPrecontrainte, Federation Internationale de la. Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press, 1983.
Dyfyniad MLAPrecontrainte, Federation Internationale de la. Fip Manual Of Lightweight Aggregate Concrete. Surrey University Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.