000 00285nam a2200121Ia 4500
008 220201s1961 xx 000 0 eng d
082 _a621.381
_bGRA
100 _aGray, TS
245 0 _aApplied electronics
260 _bNewDelhi: Asia Pub House
_c1961
300 _a881
942 _2ddc
999 _c71453
_d71453