000 00301nam a2200145Ia 4500
100 _aGray/ B.F
942 _cBK
654 _aElectronics 2
245 _aElectronics 2
260 _bLongman(Xerox)
_aLondon
_c1979
082 _a621.3811
_bGRA/XE
300 _a146
546 _aENGLISH
999 _c24737
_d24737