000 00346 a2200133 4500
020 _a0749260424
082 _a621.3815
_bOPE
090 _c2524
_d3067
245 _aBlock 1 introduction to signals and circuits
260 _aMilton Keynes
_bOpen university
_c1990
_g1990
300 _a86p.
_c29cm
650 _aComponents and circuits
942 _cSR
999 _c31585
_d31585