000 00233nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aY K Bhushan/ Aggarwal
245 0 _aAadhunik vyavsay
260 _aDelhi
_bS Chand
_c1971
942 _cBK
999 _c1077
_d1077