000 00326nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRK.0089
100 _aKadekodi, Gopal K.
245 0 _aPlanning for coal mining in India : Choice of techniques, scales and beneficatio
260 _c1986
300 _a252p.
942 _cBK
999 _c18040
_d18040