000 00643nam a22001817a 4500
001 CATREF016071
008 140422b xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a622 WOR-3
100 _aCongress of world mining congress (12th : 1984 : New Delhi)
245 1 0 _aOptimal exploitation of solid mineral resources :
_bWorld Mining Congress, New Delhi, India, November 19-23, 1984.
260 _aCalcutta :
_bWorld Mining Congress,
_c1984.
300 _a3 v. (p. v.) ;
_c20 cm.
650 _aMineral resources conservation
650 _aMine safety
650 _aMines and mineral resources
650 _aMining engineering
999 _c432087
_d432022