000 00250nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aN C Aggarwal
245 0 _aKaryavahak pranali ka saral adhyayan
260 _aDelhi
_bDelhi Pub House
_c1972
942 _cBK
999 _c673
_d673