000 004360000a22001690004500
008 151126t1981 xxu||||| |||| 00| 0 eng d
020 _a0070994757
041 _aeng
080 _a621.374.32
_bM3
942 _cBK
100 _aMalvino, Albert Paul
100 _aLeach, Donald P.
245 _aDigital principles and applications
250 _a3rd ed.
260 _aNew Delhi
_bTata McGraw Hill
_c1981
300 _avi, 490p. : ill.
999 _c139728
_d139728