000 00293nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a621.38
_bTAU
100 _a TAUB (Herbert)/ SCHILLING (Donald. L)
245 0 _aPrinciples of Communication Systems
260 _b BPB
_a New Delhi
942 _cBK
999 _c162
_d162