000 00243nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aM L Jain/ M R Aggarwal
245 0 _alaagat lekhankan
260 _aNew Delhi
_bNational Pub
_c1987
942 _cBK
999 _c7707
_d7707