000 00296nam a2200121Ia 4500
008 220120s9999||||xx |||||||||||||| ||und||
082 _a00 5.43 STA
100 _aStallings, William
245 0 _aData computer communications
260 _c2002
300 _b0
650 _aSIGNAL PROCESSING
_9719
999 _c136688
_d136688