000 00258nam a22001217a 4500
999 _c2647
_d2647
020 _a9788184873160
082 _a548
100 _aM.A. Wahab
245 _aEssentials of Crystallography
260 _aNew Delhi
_bNarosa
_c2009
300 _a335
942 _cBK
_01