000 00228 a2200097 4500
001 792
100 _aBenham,W.E
245 _aUltra high frequency performance of receiving tubes
260 _a
_bMcgrawhill
_c
090 _c385
_d385
942 _aNUST-CAE
_cM
_c30100
999 _c235865
_d235865