000 00320nam a2200121Ia 4500
008 210501s9999 xx 000 0 und d
082 _a658.45
_bV816v
100 _aKumar; Virender,NarangK.L.,GroverC.L.
245 0 _aVyavsahik Sanchar Kushaltayein
260 _c2014
_bKalyani Publishers
300 _aV.Pg
942 _cBK
999 _c39665
_d39665