000 00310nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aRam Avtar & others
245 0 _aMathematics: A textbook for higher secondary classes XI-XII (Book-II)
260 _aNew Delhi
_bN C E R T
_c1986
650 _aMath
942 _cBK
999 _c6243
_d6243