Bulletin ofthe mineral industries experiment station :
Bulletin ofthe mineral industries experiment station : Proceedings of the fourthsymposium on rock mechanics, march 3-31, april, 1961 /
Ed. by Howard l. hardtman
- 248 páginas
- Mining engineering series .
Industria minera--Congresos
TN9 / S94 1961
Industria minera--Congresos
TN9 / S94 1961