000 00244nam a2200097Ia 4500
008 160930s9999 xx 000 0 und d
100 _aSusmita, Bala
245 _aSamkalen Sanchar Siddhant
260 _aNew Delhi
_bD. P. S. Pub. House
942 _cBK
999 _c3156
_d3156