Richardson, J. (1976). Practical forwork and mould construction (2nd Ed.). Applied Science Publishers.
Dyfyniad Arddull ChicagoRichardson, JG. Practical Forwork and Mould Construction. 2nd Ed. London: Applied Science Publishers, 1976.
Dyfyniad MLARichardson, JG. Practical Forwork and Mould Construction. 2nd Ed. Applied Science Publishers, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.