000 | 003020000a22001090004500 | ||
---|---|---|---|
008 | 151023t1979 xxu||||| |||| 00| 0 eng d | ||
041 | _aeng | ||
080 |
_a624.121 _bI6 |
||
942 | _cBK | ||
245 | _aFourth international congress on rock mechanics : proceedings of... | ||
260 |
_aRotterdam _bBalkema _c1979 |
||
999 |
_c142067 _d142067 |