000 00254nam a2200109Ia 4500
008 230911s9999||||xx |||||||||||||| ||und||
020 _a9789389579994
100 _aVishishtha, A
245 0 _aMathematics
260 _bPragati Prakashan
_c2020
300 _a203
999 _c8482
_d8482