000 00270nam a2200109Ia 4500
008 190708s9999 xx 000 0 und d
082 _a622.1 G411.2
100 _aGHATAK,S
245 0 _aMINE SURVEYING AND LEVELLING VOL.2
260 _aASANSOL
_bCOALFIELD
942 _cBB
_2DDC
999 _c9944
_d9944