000 00267nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aGupta, Parmanand
245 0 _aComprehensive Mathematics
260 _bLaxmi
_aNew Delhi
_c1991
650 _aMathematics
942 _cBK
999 _c9460
_d9460