000			003190000a22001330004500
245			_aJohannsen's optical mineralogy
100			_aJohannsen, A.
100			_aNaidu, P.R.J. ed.
260			_aBombay _bAllied Publications _c1967
300			_a167p. : ill.
080			_a549.086 _bJ6
041			_aEN
942			_cBK
999			_c101859 _d101859