000			00326nam a2200145Ia 4500
001			4676
008			141107s9999 xx 000 0 und d
100			_aSmith Donald
245			_aAbc'S Of Vacuum Tubes
250			_a0
260			_aIndianapolis
260			_bHoward W. Sams & Co.,Inc.
260			_c1967
300			_a,;ill.
999			_c34042 _d34042