000 00261nam a2200109Ia 4500
008 220201s1993 xx 000 0 eng d
100 _aTIWANA A B
245 2 _aA TO Z OF PC VIRUS PROTECTION
260 _aDELHI
_bKHANNA PUB
_c1993
300 _a168
942 _2ddc
999 _c91854
_d91854