000 00312nam a2200121Ia 4500
008 220201s1997 xx 000 0 eng d
082 _a621.3
_bHOE
100 _aHoebeck, A.M
245 0 _aUp to data TTL IC 7400 data & cpmparison table
260 _aDelhi
_bBPB publication
_c1997
300 _a718
942 _2ddc
999 _c36515
_d36515