000 00293nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _bBOT
100 _aBottlieb , I.M.
245 0 _aUnderstanding Oscillator
260 _aEngland
_bW. Foulsham and Co.,
_c1971
300 _a160
942 _2ddc
999 _c22275
_d22275