000 00277nam a2200121Ia 4500
001 72991
008 240126s9999||||xx |||||||||||||| ||und||
245 0 _aCrystallography charts: Hexagonal system
260 _aHyderabad
260 _bDrafto-Arts
260 _c1987
942 _cBK
999 _c72991
_d72991