000 00435nam a22001577a 4500
005 20220518142934.0
008 100602t xxu||||| |||| 00| 0 eng d
020 _a0810463946
082 _a004.16 IBM
_bHEL
100 _aHeld,Gilbert
245 _aIBM PC AT user's reference manual
260 _aNew Jersey
_bHayden Book Company
_c1985
300 _a443p.
653 _aIBM - personal computer
_aIBM personal computer - AT
942 _cBK
999 _c222523
_d222523