000 00280nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aCarr J Joseph
245 0 _aElectronic Circuit Guide Book Ic Timers
260 _bPrompt
300 _a240
650 _aPhysics
942 _cBK
999 _c34127
_d34127