Rock mass classification (video).
Lecture presented by Dick Stacey, Emeritus Professor, University of the Witwatersrand, Johannesburg (03/06/2016 - YouTube).
Haga clic en el enlace https://youtu.be/tD3WTNLLnAU para abrir el recurso.
Lecture presented by Dick Stacey, Emeritus Professor, University of the Witwatersrand, Johannesburg (03/06/2016 - YouTube).