000 00267nam a2200121Ia 4500
008 220201s1990 xx 000 0 eng d
082 _a4
100 _aCOLIN HAYNES
245 4 _aTHE COMPUTER VIRUS PROTECTION
260 _bBPB
_c1990
300 _a192
942 _2ddc
999 _c31468
_d31468