TY  - BOOK
AU  - 
ED  - Symposium on Rock Mechanics
TI  - Rock mechanics: proceedings..
U1  - 624.1513 
PY  - 1963///
CY  - Oxford
PB  - Pergamon
KW  - Rock mechanics -- Congresses
N1  - Symposium Sponsored Jointly By University Of Minnesota And Others
ER  -