000 00276nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a1.6425
_bRIB
100 _aRibar,L John
245 0 _aC Disk tutor
260 _aLondon
_bMcgraw Hill
_c1992
300 _a460
942 _2ddc
999 _c34566
_d34566