000 00314nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c140/-
040 _aET
100 _aMITTAL ANKITA
245 0 _aOPERATING SYSTEM
260 _bNANDANI PRAKASHAN
_aDELHI
300 _a199
500 _a28957
942 _cBK
999 _c34972
_d34972