Rajapakse, R. (2017). Construction engineering design calculations and rules of thumb. Butterworth-Heinemann/Elsevier. https://doi.org/10.1016/C2015-0-02096-2
Dyfyniad Arddull ChicagoRajapakse, Ruwan. Construction Engineering Design Calculations and Rules of Thumb. Kidlington, Oxford, United Kingdom: Butterworth-Heinemann/Elsevier, 2017. https://doi.org/10.1016/C2015-0-02096-2.
Dyfyniad MLARajapakse, Ruwan. Construction Engineering Design Calculations and Rules of Thumb. Butterworth-Heinemann/Elsevier, 2017. https://doi.org/10.1016/C2015-0-02096-2.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.