000 00281nam a22000977a 4500
008 210927b |||||||| |||| 00| 0 eng d
245 _aGeosciences and Mining Journal
_bSeries-01
260 _aThimphu :
_bDepartment of Geology and Mines,
_c2020.
300 _a78 p.
_c24 cm.
942 _2ddc
999 _c8897
_d8898