000 00287nam a2200121Ia 4500
020 _a0 17 771127 2
100 _aDouglas Lewin
245 _aTheory and Design of Digital Computer Systems
250 _a2
260 _c1980
_bELBS & NELSON
_aGreat Britain
300 _avii+472
942 _cBK
999 _c8704
_d8704