000 00338nam a2200157Ia 4500
008 190201s9999 xx 000 0 und d
020 _a9.78E+12
082 _a621
082 _b382 SI
100 _a"Singh,R.P."
245 0 _aCommunication Systems
260 _aNew Delhi
260 _bTMH
260 _c1995
300 _a"xiii, 592"
999 _c44461
_d44461