000 00250nam a2200109Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aSinghal (A b)
245 0 _aC Langwage
250 _a1
260 _bUNIVERSITY BOOK HOUSE
942 _2ddc
_cSCIENCE
999 _c16956
_d16956