000 00322nam a2200133Ia 4500
005 20251003125755.0
008 251003s9999 xx 000 0 und d
082 _a621.3815
100 _aSingh & Tiwari
245 0 _aDigital Principles
260 _bNew Age International
_aNew Delhi
_c2006
300 _a369
942 _cBK
999 _c38616
_d38616