000 00274nam a2200121Ia 4500
008 220201s1967 xx 000 0 eng d
100 _aHEMENWAY C L
245 0 _aPHYSICAL ELECTRONICS
250 _a2
260 _aNEW YORK
_bWILEY PUB
_c1967
300 _a449
942 _2ddc
999 _c89363
_d89363