000 00311nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.2 M941
100 _aMUKHERJEE, S.N
245 0 _aLONGWALL MACHINERY AND MECHANISATION. VOL.1
260 _aDHANBAD
_bA.M.PUB
_c1993
300 _a24X19
942 _cBK
_2DDC
999 _c23678
_d23678