000 00299nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _a1.64
_bHIS
100 _a-
245 0 _aHistory of computers
260 _aNew Delhi :
_bIgnou,
_c2021.
350 _a192
650 _aManagement
999 _c165922
_d165922