000 00256nam a22000977a 4500
008 231204b |||||||| |||| 00| 0 eng d
020 _a9789350145135
100 _aUpadhyay & Upadhyay
_97732
245 _aMathematics-X
260 _aNew Delhi
_bS.K. Katara & Sons
999 _c12481
_d12481