000			00338cam a2200109ua 4500
082			_a622.2 _bORG/OP
245			_aOptimal Exploitation of Solid Mineral Resources: Challenges and Constraints /
250			_a1 /
260			_aCulcutta : _bOrganising Committee the 21st World Mining Comittee , _c1984.
300			_a218 ; .
942			_cREF
999			_c334288 _d334288