United States. Army. Corps of Engineers. (1949). Handbook for concrete and cement (Complete ed.). Waterways Experiment Station.
Dyfyniad Arddull ChicagoUnited States. Army. Corps of Engineers. Handbook for Concrete and Cement. Complete ed. Vicksburg, Miss.: Waterways Experiment Station, 1949.
Dyfyniad MLAUnited States. Army. Corps of Engineers. Handbook for Concrete and Cement. Complete ed. Waterways Experiment Station, 1949.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.