000 00399nam a2200169Ia 4500
001 aQ6326
008 220802s9999 xx 000 0 und d
020 _a81-297-1003-x
100 _a Sherrick ,John D.
245 0 _aConcepts in Systems and Signals
250 _a2nd
260 _c2005
300 _a457
600 _aTelecommunication Engineering
650 _aTechnology
942 _bBooks
_cBK
999 _c8052
_d8052