00460nam a2200145Ia 4500008004100000082001700041100001800058245003400076260004300110300001700153650003100170942000700201952008900208999001700297240817s9999    xx            000 0 und d  a621.385 c11e  aCarisiti A.J. 0aElectronic Telephone projects  c1989a New Delhib B.P.B. Publications  aviii 244p p.  a Electronics - Engineering  cBK  00104070aTCLbTCLd2024-08-21l0o621.385 c11ep45339r2024-08-21w2024-08-21yBK  c31489d31489