000 00299nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aManmohan Singh Arora, Ed.
245 0 _aText book of mathematics for class XI-XII (Book-IV)
260 _aNew Delhi
_bN C E R T
_c1989
650 _aMath
942 _cBK
999 _c6240
_d6240