000 00247nam a22000977a 4500
999 _c10555
_d10555
008 180219b ||||| |||| 00| 0 eng d
020 _a9788188553716
100 _aChugh,R.K.
_96460
245 _aDigitech-VIII
260 _aNew Delhi
_bG. Ram Books
_c2013