Hewlett, P. C. (2003). Lea's chemistry of cement and concrete (Fourth edition.). Butterworth-Heinemann. https://doi.org/10.1016/B978-0-7506-6256-7.X5007-3
Dyfyniad Arddull ChicagoHewlett, P. C. Lea's Chemistry of Cement and Concrete. Fourth edition. London: Butterworth-Heinemann, 2003. https://doi.org/10.1016/B978-0-7506-6256-7.X5007-3.
Dyfyniad MLAHewlett, P. C. Lea's Chemistry of Cement and Concrete. Fourth edition. Butterworth-Heinemann, 2003. https://doi.org/10.1016/B978-0-7506-6256-7.X5007-3.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.