000 00262nam a2200109Ia 4500
100 _aRamabhadran S
245 _aTelecommunications: Principles, Circuits and Systems
250 _a2
260 _c1976
_bKHANNA PUBLISHERS
_aDelhi
300 _axxx+1236
942 _cBK
999 _c6946
_d6946