000 00287nam a2200133Ia 4500
020 _a9788175154124
100 _aFoster LS
245 _aUnderstanding C
250 _a3rd
260 _c2008
_bGalgotia Publications
_aNew Delhi
300 _axxi+805
700 _aFoster WD
942 _cBK
999 _c32979
_d32979