000 00606nam a2200217Ia 4500
005 20241216010721.0
008 180423s9999||||xx |||||||||||||| ||und||
082 _a552
_bC23
100 _aCANADIEM NATIONLAL
245 0 _aUNDERGROUND ROCK ENGINEERING
_b13TH CANDIAN ROCK MECHANICS SYPOSIUM
250 _a0
260 _aCANADA
_bTHE CANDIAN INSTITUTE
_c1980
300 _a225 pag.
_c28 cm
341 _h0
490 _v22
_a0
505 _aMEASUREMENTS-HISTORIES ROCK MECHANICS
541 _aD
_bBANCO MINERO DEL PERU
_d07-Jul-95
650 _aCIENCIAS PURAS
856 _zDeposito
942 _cLIBRO
999 _c22072
_d22072