000 00351nam a2200145Ia 4500
008 241225s9999 xx 000 0 und d
020 _a0
082 _a621.38159
_bSIN
100 _aSingh, L P.
245 0 _aDigital protection
260 _aNew Delhi :
_bNew Age International,
_c1994
300 _a272.
365 _a300
650 _aApplied physics
999 _c33784
_d33784