000 00298nam a2200121Ia 4500
005 20250109165513.0
008 250109s2015 xx 000 0 und d
041 _aeng
100 _aDr. S.K.Singh
245 _aProfessional Communication
260 _bVayu Education , New Delhi
_c2015
300 _a314P
999 _c7666
_d7666