000 00353 a2200133 4500
020 _a0749260149
082 _a621.3815
_bOPE
090 _c2522
_d3066
245 _aBlock1 introduction to signals and circuits parts 1-3
260 _aMilton keynes
_bOpen university
_c1990
_g1990
300 _a103
_c29cm
650 _aComponents and circuits
942 _cSR
999 _c31583
_d31583