000 00727cam a2200157ua 4500
041 _aeng
_h
082 _a028.74622
_bORG/WO
110 1 _aOrganising committee of the 21st world mining congress .
_b
_c()
245 _aWorld mining congress minier mondial congresso mundial de mineria /
_cOrganising committee of the 21st world mining congress.
_hTextual Documents
250 _a1 /
_b.
260 _aCalcutta :
_bOrgan9ising committee ,
_c1984.
300 _a200 ; .
504 _a
942 _cBK
999 _c334289
_d334289