000 00210 a2200097 4500
001 19317
100 _aShrader, R L
245 _aElectronic communication
260 _a
_bMC Graw Hill
_c
090 _c14184
_d14184
942 _aNUST-CAE
_cM
_c4652
999 _c254390
_d254390