000 00639nam a2200229Ia 4500
003 OSt
005 20220918214252.0
006 a|||||r|||| 00| 0
007 ta
008 220917b |||||||| |||| 00| 0 eng d
024 _a136,576
037 _cTextual
040 _aARTS
_cARTS
_beng
041 _2eng
_aeng
082 _aX9F551:B2893P, J8
100 _aHenderson James M
245 0 _cHenderson James M
_aEfficiency of the coal industry
_b An applications of linear programming
260 _aNA
_bNA
_c1958
650 _aECONOMICS
942 _hX9F551:B2893P, J8
_cTEXL
_2CC
999 _c259666
_d259666