000			00351nam a22001457a 4500
005			20210922170340.0
008			210922b ||||| |||| 00| 0 eng d
041			_aeng
100			_aGothnann W H _926815
245			_aDigital electronics an introduction to theory
250			_a2nd
260			_aN Delhi _bPHI _c1990
300			_a383
942			_cBK
999			_c191966 _d191966