000			00241nam a2200097 4500
999			_c334645 _d334645
082			_a548.9 _bSHU.P
100			_aShubnikov, A.V
245			_aPrinciples of Optical Crystallography _cShubnikov, A.V
260			_aNew York _c1960 _bCB
942			_cBK