000 00458nam a2200169Ia 4500
008 170207s9999 xx 000 0 und d
082 _aPG 535.2 RAM-T3
100 _aRamabhadran, S
245 _aTelecommunications: Principles, circuits and systems
250 _a3
260 _bKhanna Publishers, New Delhi
260 _c1982
300 _a1003
365 _b65
650 _aPhysical optics; Light & paraphotic phenomena; Physics
942 _cBOOKS
999 _c25615
_d25615