00427nam a2200157Ia 4500008004100000020001800041082001600059100001700075245002600092250000700118260006000125300002300185500001900208600002700227650001500254240925s9999    xx            000 0 und d  a9789386286512  a621.382 KAK  aKakani, S. L 0aCommunication systems  aNA  aNew Delhi:bNew Age International (Pvt) Limitedc,2017.  a960p.b0fOriginal  aIncludes Index  aEngineering Technology  aTechnology