000 00208 a2200097 4500
001 4334
100 _aNilson,A.R
245 _aPractical radio communiction
260 _a
_bMcgrawhill
_c
090 _c3550
_d3550
942 _aNUST-CAE
_cM
_c28336
999 _c239407
_d239407