000 00369nam a2200145 4500
001 0000003857
008 121121 eng
040 _aJMG HQ
090 0 0 _a553.453
_bSEM
245 0 0 _aSeminar on beneficiation of tin and associated minerals
260 _c1982
300 _a1v. (various pagings)
_bill.
_c30 cm
504 _aIncludes bibliographical references
650 0 _aTin
999 _c20344
_d20344